Fox has a short fuse with quarterbacks prone to turnovers, and that's the biggest factor for a team that is 32nd in in turnover ratio at minus-7 and finished tied for last in 2016 at minus-20. The plan, though, was to bring Trubisky along slowly and allow him to build confidence on the practice field and out of the spotlight. Ownership backed that strategy, so the Bears will have to admit the plan was fatally flawed from the jump if they make a move. Do they make a switch because Trubisky is suddenly ready — maybe he is — or because Glennon has bombed?