playing second fiddle to one of the top tight end prospects in this year's draft. He still managed 24 receptions for 393 yards and four touchdowns, but he has work to do on his fundamentals if he's to succeed in the NFL.

Toilolo did himself few favors at the scouting combine. His 40-yard dash time was the second slowest, and he had just 17 bench-press repetitions. His 2010 ACL tear doesn't help matters either.

8. Nick Kasa, Colorado

Colorado's Nick Kasa has played tight end for just one year—he was previously a defensive end—but he made enough of an impact in that one season at the position to be worth a team's draft pick this year.

WalterFootball.com notes: "A lot of scouts are high on Kasa's potential because he has a seriousmake big plays in other ways on the field. He also has great hands and has never had any trouble with dropping passes.

He also has special teams experience, which raises his draft cachet significantly.

The biggest weakness for Rivera is blocking, which is partially related to his being rather small for the position.

12. Michael Williams, Alabama

Though most would ascribe the continued success of the Alabama Crimson Tide's run game to their stellar offensive line, the contributions of tight end Michael Williams also greatly helped them out.

Not surprisingly, therefore, Williams is mainly a blocking tight end who has taken on minimal receiving duties. He caught just 24 passes for 183 yards and four touchdowns in 2012 and only 16 passes the previous year.

The bread and butter of Williams' game is