Tyson Bagent didn't meet his own standard Saturday — but his value to Bears won't change

When Ben Johnson first was asked about the possibility the Bears could trade backup quarterback Tyson Bagent, he pretended to go into a coughing fit during the NFL Scouting Combine. He put his right hand to his mouth and let out an answer, emphatic and guttural. “No!” he said. The preseason is the time when Bagent typically shows the rest of the world what Johnson sees on the practice field and in meeting rooms. As a rookie out of Div. II Shepherd University, he beat out veteran P.J. Walker,…