Stuart Broad admits the level of criticism directed at England captain Alastair Cook has been "disappointing" but expects the negativity to continue until the out-of-form opener scores a century.
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England lost their two-match Test series 1-0 at home to Sri Lanka last month and Cook was unable to shake off his poor recent record with the bat.
The left-hander's best score for the series was 28, extending his run without a Test hundred to almost 14 months.
Cook's troubles at the crease have coincided with a poor run of results and the likes of Shane Warne, Geoffrey Boycott and Kevin Pietersen have all stuck the boot into the England skipper.
Warne has repeatedly attacked Cook's style of captaincy in recent weeks while Pietersen said there was an "underlying current of unhappiness" in the England ranks.
"You look out for your mates so you're obviously disappointed when you see criticism of that sort of level," Broad said.
"One thing I know from being in the four walls of the changing room is actually the environment that Cooky and Peter Moores are developing is strong - you can see that from the performances of the young guys coming in.
"When the environment is off - and we had people mentioning it in Australia - young players can come in and be overawed by senior players and that makes it difficult to perform.
"Instead we've had Sam Robson come in and score a hundred, Gary Ballance score a hundred, Liam Plunkett take nine wickets, Moeen Ali score a hundred - so that shows the guys coming into the set-up feel relaxed and like they can play.
"Cooky will gain a huge amount of confidence from the environment he's setting for the side and he should feed off that."
Cook has endured a chaotic few months as captain having overseen the dismal Ashes defeat in Australia and the subsequent departures of both Pietersen and coach Andy Flower.
The left-hander can perhaps draw on positive memories of playing against India, however, having led England in 2012 to their first Test-series win on Indian soil since 1985.
Cook scored 568 runs in the series and broke the record for most Test centuries by an England batsman.
"I certainly think Cooky is the right man for the job now and once he gets one hundred under his belt I think he'll get many more - I'm just looking forward to that hundred celebration when he does," Broad said.
"He's a relaxed guy, there's a few of us who have played long enough to know we're in a stats and results-driven business so when you're not scoring runs or taking wickets you expect a certain amouont of flack.
"That won't change until he scores a hundred and Cooky knows that. "
Were Cook to stand down as captain, Broad would certainly be in the frame to succeed him given his experience of skippering the Twenty20 side.
The fast bowler, however, distanced himself from the role.
"As a fast bowler, captaincy is quite tough over the long-format of the game," Broad said.
"It tends to be better for a captain to stand at first slip and stay logical about the game and not have to fire up and bowl a big spell for the team.
"Being a fast bowler and captain in a long format game would be really hard work."
England have tried to instil a more positive, open atmosphere in the squad under Moores.
Different players, including the younger members of the team, are encouraged to lead team-talks between sessions and Cook has sought greater input from senior figures.
"We're trying to open up repsonsibility to everyone in the changing room - whether you've played one Test or 70 Tests your opinion is extremely valued," Broad said.
"You have one guy who has the armband but you want five or six captains thinking about what we can do to certain batsmen on certain wickets.
"When you give repsonsibility to different players to speak it encaptures that mindset.
"Cooky has brought that in, he wants people to be more open and I think that's a real positive."
England open up the series at Trent Bridge on July 9 needing to bounce back from consecutive defeats to Sri Lanka in all three formats of the game.
"The pressure should build on an England side if you lose every series in the summer - that's unacceptable as players," Broad added.
"These are our home conditions and we should be able to extract the most out of them. Thinking about losing this series can't cross our mind."