What trouble do coaches go through to redshirt a guy? They don't play, they get a redshirt. Doesn't seem like much trouble to me. I mean they redshirt walk-ons after all, so it doesn't necessarily mean that they think he is going to turn it around and be great next year. Not saying that he won't but I don't think him being redshirted is any sort of indication one way or the other.
Cause coaches usually don't redshirt juice players unless they're hurt or they plan on playing them.