The Millers yesterday confirmed that Ronnie Moore & Jimmy Mullen both left the club.
"I'm a risk-taker, not a gambler. I looked where we were and feel it is the right decision," said Stewart.
"We, as a board - for this isn't solely Tony Stewart's decision - looked and said 'do we change and give these people their opportunity or run to the end of the season with Ronnie Moore?'.
"We had looked at the statistics, at where we had taken 12 points from the last 11 matches, and felt that wasn't what would get us where we want to be." Tony said.
Stewart then went on to speak about the clubs caretaker managers; "There was an opportunity to utilise the current coaching staff and felt we had to make that decision.
"Andy is a very confident person and he, Paul and Andy are people who have worked with the squad, coached them on a daily basis.
"I've seen the way Andy Liddell works - the way he organises; his discipline - and he's knowledgable. They can't wait to get stuck into this. We know they will put the effort in. It is an experiment; well, life is an experiment." he added
Tony then thanked Ronnie for the job he'd done while being at the club; "It was sad because Ronnie is a very nice guy. We have worked closely and well and had a good understanding. When he came in 18 months ago, we both had the same aims and he was under no misapprehension. The picture was clear.
"We had to make a decision because of the results and he took the decision like a gentleman, so gallant, and he thanked us for what we'd done and said he'd always be close to Rotherham United." he added.