Prohm has never been a Floyd/Eustachy type coach in terms of offense. There is no way that is what they will look like next year. That is just silly. Prohm like spacing and pacing.
Because that's what he had the players for here to run, so he did? Even then it wasn't nearly the spacing or pacing it would have been under Fred. He did switch to a similar style of Hoiball his last few years and Murray State, because that's what he had a roster for. I'm going to go out on a limb and say he's willing to contact people and change system/style as needed to play to his players strengths.
He's already been preaching defense big time, which will be needed for this team... not so much in Hoiball.