Originally Posted by carolinacoast
Marquise Williams is a redshirt sophmore, and is not a senior, while Trubisky is a true freshman. I don't see your confusion.
The confusion is: why would 1 quarterback be better to replace Renner in a short term situation (Renner out for a game or 2) but the other quarterback a better long term replacement (Renner out for the season).
The only way that makes sense is if the #3 QB is similar to Renner, and the #2 QB has the skills to run a different kind of offense.