Northwestern quarterback Kain Colter took a majority of the first team reps on Tuesday. Starter Dan Persa says his Achilles' tendon is "not as strong as it needs to be just yet, but I'm almost there."
If you haven't already, you need to pull Persa out of your starting lineup. In fact, I'd start looking at waiver wire prospects just in case. Note, I didn't say drop Persa.