The Bears' offseason roster is nearly full after a round of reported undrafted free agent signings yet to be confirmed by the team. Following rookie camp on Friday and Saturday, it could change when they offer contracts to tryout rookies and veterans who get invited for the workouts and meetings, but this won't really affect much about the roster . Regardless, the signings made then do not usually enter into training camp job battles with a playoff team. They're players at the back of 90-man offseason roster and the spots being fought for are those near the 53-man marke r for the regular season. Much can change after OTAs and minicamp end in mid-June. The reason for this is players are battling even in the offseason. Nothing gets cemented when they're wearing shorts and T-shirts in non-contact work but they can sure plant seeds in their coaches' minds. Ryan Poles: Unacceptable EDGE management If you have been a GM for 5 years, how in the hell have you not drafted an edge rusher in the early rounds?…