No...I think as a GM or coach you want one of the two outcomes. (Preferably 1)Yes, let's ruin him quickly
1) You start him and he is amazing and you now have your franchise quarterback
2) You start him and his is a complete bust. (If he fails, you want him to fail fast)
What you don't want to happen is
3) You start him and he shows some flashes of greatness mixed in with mediocrity (see Chad Henne) After years and years of evaluation you finally realize he isn't the franchise quarterback