Keeping Rivera and some of the staff might give the GM even more power in the long run. If he keeps Rivera and it works out, he looks like a genius. If he keeps him and it doesn't work out, he says "Well they were 'trending up' in 2012, now I need to bring in my own guy". If he fires Rivera...and the new coach doesn't pan out...everyone is wondering "Well what if he kept Rivera?"
Whatever the decision is, it looks like keeping Rivera is the safer one of the two for a new GM.
That's not giving him power. Keeping Rivera is not that much of a safe decision either. What's safe is the new GM brings in his own guy. Fits the personnel to the scheme of his own HC. Not draft or add free agents for Rivera and he ends up having to fire Rivera then we have just wasted time and another season. It's only right for JR to allow his new GM to pick his own people. A lot of us have seen enough of Rivera for the past two season to pretty much determine we will be mediocre at best with him. Last year we are 2-8 in till the month of December. This year we are 3-7 in till the month of December. What does that tell you about him and our team?