The 48-year-old said he has hugely changed the club since he joined on January 10 to create that positivity.
He is working on overhauling the training ground and gym to make it a better environment for the players.
He said: "The gym is a prime example. When we walked into the gym it wasn't fit for purpose. It wasn't a working gym for a professional football club.
"All that's had to change we've ripped things out and changed the whole situation there.
"When the guys come back in the summer they'll see this place different again.
"I don't think there's a great deal of love for [the training ground] and you can understand why. You need to change that and people need to understand this is our place of work and it's got to be a nice environment.
"I've been through this before at Man City when I walked through the door then. It was a club that needed shaping in the right direction. That's what's needed here."