Coaches sometimes take seemingly dumb chances... sometimes they work, sometimes they don't. Trusting your kicker to make a 47 yarder in a dome isn't the end of the world. I can easily think of many much worse calls. Just off the top of my head...
Bill Belichick went for it on 4th-down, up six points at their own 28 and lost the game vs Indy back in 2009. Bill Parcells as a rookie Jets coach called a halfback option pass from the Lions' 9 with 3 minutes remaining and trailing, 13-10. The pass is intercepted in the end zone and the Jets missed the playoffs. And nothing compares to Pete Carroll calling that dumb pass play instead of simply running the ball with Marshawn and losing the SB...
Lovie was even worse. Nothing will ever top calling a timeout, then challenging the ruling on a failed 4th down play to lose a 2nd timeout.
These gems were good too...
http://articles.chicagotribune.com/2009-12-15/sports/0912140506_1_timeout-clock-management-smith
Again, nothing new. Queue Lovie's "we get off the bus running" and "Rex is our quarterback" repeated mantras.
Nobody was expecting him to turn Cutler into a Hall of Famer. We just wanted to see him improve at all. It's jut funny how Trestman was able to get Josh McCown to morph into the NFL's best QB by simply running the offense as it was designed... clearly the teaching wasn't being lost on him. One student listened and applied what he was taught, the other didn't. Again, not the teachers fault that one student failed to properly apply what he was being taught.