Sikandar Raza admitted "the wheels are coming off again" for Zimbabwe after India took the lead in their five-match T20I series.
After losing the first match, India are now 2-1 up in the series after three games having held out for a 23-run victory on Wednesday.
Shubman Gill settled straight back in after returning to the squad following their World Cup success, hitting 66 off 49 balls to set India on their way.
With Yashasvi Jaiswal (36) and Ruturaj Gaikwad (49) also finding their rhythm early on, India set an impressive target of 182-4.
Zimbabwe struggled in the field but also got off to a slow start with the bat until Dion Myers entered the fray, getting 65 not out to give the hosts some hope.
Washington Sundar's three wickets soon put a halt to their comeback as they fell short.
Raza was left to lament a frustrating game but was optimistic they could get back to their best.
"Think [the problem] is the fielding again," Raza said. "We are very proud of it, but the wheels are coming off again.
"We gave away 20 runs extra. We still have problems at the top [with the bat], but we are backing the boys. I know they are trying and once they do, we will come good again.
"It is time we players including me take the responsibility. I can accept some mistakes from the young side, but the seniors need to step up. But we need to back them.
"This is the best we have and this is the best that we can do. The game always rewards you, always does."
The fourth match will take place on Saturday, and a win for India would confirm their series win.
Data Debrief: India just too strong
Gll sped to his half-century in just 36 balls, earning his first 50 as India's T20I captain.
Despite their strong batting display, India were also the beneficiaries of 31 runs after Zimbabwe struggled to take their chances out on the field. The eventual win margin for India: 23.
ECB chief insists no decision made on Mott future
England and Wales Cricket Board chief executive Richard Gould has denied reports a decision has already been made on Matthew Mott's future as white-ball coach.
Mott's future has been called into question in the aftermath of England's failure to defend their T20 World Cup crown in the United States and West Indies, losing to India in the semi-finals.
Mott also oversaw England's calamitous 50-over World Cup campaign last year, as they lost six of their nine matches in India and crashed out in the group stage.
Reports earlier this week suggested the decision had already been made to dispense with Mott's services, with Eoin Morgan a contender to succeed him, though the former limited-overs captain has since said he has no interest in the role.
Asked by BBC Test Match Special if Mott's future had already been decided, Gould said: "That's not true. That's certainly not true.
"Matthew Mott is a really good guy and coach. He's got a great track record and it is the same with [captain] Jos [Buttler].
"We are always assessing options - that is what happens in high-performance sport, you are always assessing your options.
"You never want to be drawn into being given the dreaded vote of confidence or anything like that. Competitive sport always brings scrutiny and decisions.
"We'll constantly want to assess our options but we'll always want to do the right thing by the sport, the team and individuals."
West Indies grab three late wickets on day one as third Test against England in the balance
England lost three wickets in a dramatic end to day one of the third Test against West Indies, leaving them in a precarious position after restricting the tourists for 282.
Gus Atkinson finished with figures of 4-67, while Chris Woakes took 3-69 for England, as only a fine sixth-wicket stand from Jason Holder and Joshua Da Silva saved West Indies from being bowled out for a much lower total.
But England, chasing a 3-0 series whitewash, let their dominant position slip when taking up the bat for the final 35 minutes, Zak Crawley (18), Ben Duckett (3) and Mark Wood (0) being dispatched as bowler Jayden Seales dropped them to 38-3.
Windies skipper Kraigg Brathwaite won the toss and chose to bat, leading his side to a solid start before a spell of three wickets in five overs before lunch put England on top.
Atkinson accounted for Mikyle Louis (26) and Alick Athanaze (2) on either side of Wood sending stumps flying with a full delivery to dismiss Kirk McKenize for 12.
Brathwaite's knock of 61 was brought to a halt shortly after the action resumed, the captain gloving Wood's leg-side ball to Jamie Smith as the tourists slid from 76-0 to 115-5 in 45 balls.
Holder (59) and Da Silva (49) then shared 108 to drag the Windies towards a respectable total, but things looked bleak for them when the latter feathered Woakes' ball through to Smith.
Having gone 30 overs without a wicket, England needed just 14 more to polish off the tail, the highlight being a terrific diving catch from Joe Root to send Gudakesh Motie (8) packing.
England were given just over half an hour with the bat to cap Friday's action, but any hopes of a serene finish were soon dashed.
Holder made two terrific catches off Seales' bowling, the first from Crawley's thick outside edge and the second to dismiss Wood for a duck, either side of Alzarri Joseph's cracking delivery accounting for Duckett.
That spell ensured what had been a good day for the hosts ended on a sour note, with the Windies sure to target quick wickets when the action resumes on Saturday.
Data Debrief: Atkinson and Seales dominate
This series began with all the focus on James Anderson as England's greatest-ever bowler bowed out at Lord's, but Atkinson has taken centre-stage since making his Test debut in the opening match and now has 20 wickets through five innings.
That is eight more than West Indies' Jayden Seales, the next-most prolific bowler in this series, has managed.
Seales was determined to have an impact on day one, though, and his two wickets at the death have set the stage for a far more competitive match than those England won at Lord's and Trent Bridge.
Bairstow set sights on swift England Test return
Jonny Bairstow bit back when asked if he was targeting an England return, insisting it is "all I want to do."
Bairstow was dropped from England's Test team for the ongoing series against West Indies.
The 34-year-old was part of England's T20 World Cup squad, and played in all five Tests of the tour of India earlier this year.
Bairstow has made 100 Test appearances, and when asked what his immediate target was, the wicketkeeper-batsman told former England captain and now-BBC Sport pundit Michael Vaughan: "All I want to do is play for England. That's end of.
"You don't need to ask me that do you? I think you know me well enough and I think you've known me for long enough to know that."
Bairstow did, however, enjoy a break away from the game, having had four weeks off before he joined the Welsh Fire for the Hundred.
He said: "At the same time it's been a great period of time.
"I had the best part of seven months away from home. Since January, I had five nights at home in my own bed since, until three weeks ago.
"That's the thing you have to sacrifice, time at home but at the same time, when you are away for that period of time, it takes its toll."
England are 2-0 up against the Windies in their three-match series, with the final Test starting at Edgbaston on Friday.
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