On the field:
The Bears have been in need of a pass-catching tight end since trading Greg Olsen last summer. Rodriguez is that, but the team hopes he also can block linebackers, seal the edge in the running game and be a vertical threat.
Rodriguez has lot of offense to learn, but if he can, he could be a three-down player and provide a boost in all phases. He's a purer receiver than Kellen Davis and will add a dynamic that didn't exist under Mike Martz.
Rodriguez is undersized and isn't physically imposing, which will make him iffy as a blocker in the running game. He also comes with off-the-field baggage, but the Bears hope those issues are behind him.