David Carr
It’s harsh to include Carr on this list because it’s not entirely his fault. The former Fresno State star arrived in Houston as the first overall pick. Their fans thought that they had signed one of the most exciting NFL quarterbacks ever. But they didn’t see the best of the signal-caller because he took too many sacks behind the expansion team Texans’ nonexistent offensive line (via Pro Football History).

Carr ludicrously took 249 sacks during his five-season tenure in Texas. The Texans failed to protect him properly and this affected Carr’s game. The rattled star began throwing more interceptions as he released passes too quickly. It was crushing for the fans because they thought he would be an all-time great but it didn’t happen.