jimmy, my understanding of the RJ situation is based upon what has been printed, I have no inside info. What I have read in public sources is that RJ (and family) put out word early in his Soph season that he was going to transfer. IIRC, it was the father who was contacting people (and schools) about this. It is also true that RJ played a lot both early and late in the year. However, his play became less team-oriented and more RJ-oriented as the year went by. This is a critical failure for a PG - who is supposed to be a facilitator. In fact, as far as Painter is concerned, I think that he made a mistake playing RJ as he did. RJ's play as the year went on was discussed here and puzzled many. It was only after the fact that things were understood more clearly. For my money, playing Scott as a freshmen, giving him minutes that RJ got, might have allowed him to develop to where he would still be here.
As for Scott, it is obvious that he has talent. He played a great game at Mackey against IU and was very instrumental in Purdue's win. He also played well in Bloomington iirc. However, there was evidently some personality/emotional issues between him and Painter - again this was admitted in print by Scott. As things went on, things became beyond resolution. I regret that as he is a case of "...what might have been."
As for success under Painter: I do believe it is possible. However, I do think that there is a problem - but Painter is not the problem. IMO, it is Burke - and the Board. The Board wants the Athletic Dept. to be self-supporting - and it always has been at Purdue as I understand it. However, in recent years the Board and President has drained cash from the Athletic Dept. Burke went along with this. The Athletic Dept. is a contributor to the General Fund as well as specified projects. On top of that Burke, funneled cash away from the Revenue Sports and into the minor sports. However, the BCG Growth Matrix tells you that it makes little sense to starve the Cash Cows, which is what was done. That is one major reason for Painter's flirtation with Missouri and the changes that he demanded. The decline of the football program is also a result of Burke's choices. Damge was done, and it will take time to fix in both major sports. While I think that Painter and football can be successful, I do not see them being so under Burke. A new AD and one willing to stand up to the Board and President will be required for prolonged success. Admittedly, in a given year, someone can catch lightning in a botttle (see GMason or VCU.)