Perhaps, but I have a suspicion the additional hire will be on the offensive side of the ball. Riley appears to be addressing issues systematically, and if my perception of this is correct (my personal opinion), Riley will make attempts to get this side of the ball some needed assistance before adding another role on defense.
If/when the 10th assistant is approved by the NCAA, I could see that going to defense.
All in all I like the hire, but as always time will tell if the correct one. Looking forward to a different mentality on defense, this team needs to find its swagger and for me that begins with aggressive defensive play.