I've disliked Fielder just for the fact he simply wasn't good enough at QB. He had heart, he did as much as he could within his limitations, but he simply lacked the abilities of good-great QBs. Wanny thought he was good enough though, and wasted some prime years of a great defense and running game trying to make it work. Pennington could have been special, but his shoulder was held together by scotch tape and tissue paper. Except for that major issue, Chad was good enough to win a Super Bowl with a solid defense and running game around him. Tanny on some of those Fielder teams? Probably peaks at a Trent Green level, but that would have been good enough for playoffs, and maybe a Super Bowl? The better coaches/defenses would have stacked the box and forced Tanny to beat them with his passing, so I don't know about any deep playoff runs.