The Tykes, who parted company with previous boss Daniel Stendel last month, are bottom of the Sky Bet Championship having picked up just one win all season.
That win came against Fulham on the opening day of the season and their poor run of form since has left them stranded at the bottom – but Mowatt believes his team can climb to safety by sticking together as a group of players.
Speaking to the club’s official website, the former Leeds man said: “I don’t know how many changes of manager I went through at Leeds, it was a lot, and now here we are on our third manager already this season, so it is pretty similar. I am used to it though.
“We have got to stick together as a team and cannot hide away in games and we have to play for 90 minutes. There has to be focus and concentration.
“Even the boys who have not been starting and not coming on, it is about everyone as a team really. All in it together.”
Mowatt also says other teams in the Championship have capitalised on their mistakes as he urged his fellow Barnsley players to eradicate errors which are costing them points.
He said: “No-one wants to get relegated. And hopefully we can turn things around. Last season we won most weeks and now we’re getting this. It’s tough to take and I’ve not experienced this myself before.
“I think we have gone away from making the right decisions and doing basic things. Little mistakes keep costing us and it’s different players each week so it’s an issue we need to put right.
“Not making the right decisions in the right areas has cost us since the start of the season. Making simple changes will help us massively.”