Let's say Rod did indeed hire Bob to take the obstruction case out of Andy's hands. The reason given for hiring Bob in the first place was Jimmy's leaked memos. Jimmy even specifically said he'd leaked the memos to get the SC. It seems NO ONE wanted Andy to handle the obstruction case. Why? That seems to line up with POTUS planning, calling Bob in to have "the talk," etc. Thing is, was Jimmy leaking the memos also part of this? Or did someone just "give" him the idea to do it? And why wasn't Jimmy comfortable with Andy doing the investigation rather than an SC?
I guess my overall conclusion is, POTUS wanted the Comey memos leaked because he ultimately wanted the SC as well.