The interesting thing about the first round picks in the Kubiak era is that the ones that were most heavily criticized were the ones that have worked out the best.
2006: Mario over Bush and VY. I don't think there's ever been more criticism for a #1 overall pick in the history of the league. Mario worked out well enough to snag a $100,000,000 contract.
2007: Amobi Okoye. Not that much criticism at the time, though there are legions of folks who later claimed they were for drafting Patrick Willis all along. General consensus was that nobody thought he'd be there for the Texans' pick.
2008: Duane Brown. Widely seen as an unwarranted reach, but he's now one of the premier players at a premium position.
2009: Brian Cushing. "I hate this pick with the fire of a thousand suns" or something like that was the general feeling.
2010: Kareem Jackson. Some thought he was a reach, but the criticism was pretty mild. Like Brown, he took some time to develop, though it is too soon to tell if he's really turned the corner the way Brown did a couple years ago.
2011: Watt. We know that deal.
Too soon to tell on Mercilus, but I really like how he's being worked into the rotation recently.
If any fan base should trust its folks on draft day (at least in Round 1), it should be ours.