Haven't seen this angle taken yet, but the first thing I thought of this morning was huh?  Lifetime OL coach promoted to a position he has zero experience in.  Promoted over other possible candidates both in and out of the organization.  Did Andy know about this before hand and figure, "Hell, if one guy can be promoted to Head Coach, why can't I give Juan a chance?  He is probably just as qualified to be DC as Mike is to be HC."

Seriously, I don't remember ever a time when even an OL got promoted to DC, or HC.  Now we have 2 in a week?  Someone please que to "Twilight Zone" theme music...