When all your $$ is in the QB and the best WR in the game you take the franchise left tackle here.
I'm just going by the fact that most experts seem to think there's not a ton of difference between Joeckel and Fisher, yet in every mock I've read, both Milliner and Fisher have been available and the Lions have gone with Milliner, with most calling it a no-brainer. I'm no Lions homer, so I defer here, just seems to me that most think CB is a far greater need than LT, so if that IS the case, they'd have to think Joeckel is a far better prospect than Fisher to take him here with Milliner still on the board.