Why would that be the assumption? Cam played miserably last season. He had little help, etc., etc., but there were serious underlying flaws in mechanics, accuracy, recognition, etc. that rendered the results moot. These are especially egregious given BB's stated preferences for a QB (from that printed sheet provided by Jeremiah). They bring Cam back - he's a big name, gives them a floor, perhaps a full TC of coaching - but the film shows almost no improvement in the flaws. He's still poor in recognition, mechanics, etc. The floor is still there, but so is the low ceiling. Meanwhile, Mac is killing it in all the things that matter. He's reading D's, he's accurate, he has pocket presence, etc. This was no contest and they started to see it on Day 1.