Hiring Tubby was awesome...at the time. This was my take, season-by-season...
Year 1: He took us from one of the crappiest seasons in memory to 6th in the Big Ten, the BTT semis and then nearly making the NCAA in a single season. That was awesome.
Year 2: We improved! We had an exciting freshman class. We had a better record (Big Ten placement not as good). We made the NCAA tournament!
Year 3: Awesome incoming class. Royce, Rodney, Trevor and Justin. For me, the Midnight Madness that fall was almost the high point of Tubby's tenure. After that, the wheels slowly started coming off the bus. A somewhat disappointing season given everything we had going for us in October. Still, we made the NCAA tournament.
Year 4: Awesome non-conference season. But transfers...Injuries...Who's fault is it? Who cares. We were barely .500 on the season after starting 11-1. Didn't even bother accepting post-season offer. Wow. Worst season of Tubby's tenure to date...but the injuries aren't his fault. But some questionable decisions on point guard.
Year 5: Awesome non-conference season. Trevor goes down. No viable backup. Ralph regresses. Rodney emerges somewhat. Another crappy season. Only saving grace was the NIT run, which gave us hope for year 6.
Year 6. TREVOR IS BACK!!! Our most experienced and supposedly deepest club in years. No excuses this time, assuming we're injury free! We start season 15-1!!! We're ranked #8...then we get a 9th seed in the BTT, go out in the first round and get a #11 seed in the NCAA. Yes, we win the first round...but Hopkins probably could've beaten that UCLA club at that point. Blown out in second round.
In summary, Tubby's tenure had about the same profile as each of the last 3 of his seasons. A lot of hope and excitement in the beginning, a lot of things happened to screw it up in the middle and a pretty disappointing finish. Couple all of that with many really questionable decisions, crazy substitution patterns, inability to take responsibility for anything...it was time to move on.