With Bears desperate for instant impact, rookie S Dillon Thieneman in 'very good spot'

CINCINNATI — One of the best things the Bears’ defense has going for it amid a challenging training camp is the rapid progress of rookie safety Dillon Thieneman. They need him to make an instant impact, especially with Coby Bryant possibly out for the season, and he’s becoming a versatile weapon in their secondary. There’s a lot of pressure on him, but he seems up for it. Bears defensive coordinator Dennis Allen has been tailoring his role at strong safety, playing him up in the box against the…