It's interesting this should come up because I've been thinking along these lines. Here's why:
Off the record, it's all but certain Roger was let go because he was an agent of the status quo. Drew has gone on record several times as being ardently opposed to the many and drastic changes being batted around, which to the minds of the execs at Fremantle (only one "e" this time) puts him in the same category. noobslayer88 is absolutely correct in asserting that this puts a big bulls-eye right on him, as Fremantle wants someone in the host spot that they can control and who won't offer resistance to change. To their minds, TPiR's overhaul is long overdue, and anyone who stands in the way is denying the importance of change.
I'll even take it a step further. I spoke directly with an unnamed Fremantle representative yesterday morning (I was trying to get them to open up and give me a light plot for one of the HD shows from last season), and they said in no uncertain terms that the atmosphere there is "highly volatile" right now and that no one's job is safe. They declined to give specifics, but one of the issues they said was a hotbed right now is "talent," which could only mean Drew or Rich. As much as I know he wants to get on camera, I highly doubt it's Rich, doubly so since he's been less than vocal about the possible changes to the show. Drew, however, has been highly vocal in his desires to preserve the status quo.
I will be the first to admit Drew wouldn't have been my first pick at first to replace Bob. He's grown on me in some ways, but there are still days when I think about the alternatives that weren't explored, or that were glossed over entirely. That said, he's clearly got the heart and enthusiasm that the job requires; and because his views are so much in line with popular opinion, I don't think he deserves to be canned. Quite the opposite, if I were Fremantle, I'd look at that as an asset and a glaring reason to keep Drew at all costs. That's just my two cents, though.
As before, I'll leave the discussion to finer minds than mine, since again it's been too many hours since I had coffee. Discuss away...