Surely there is a credible member of the Freedom Caucus to challenge Ryan?! Don't everyone rush. Maybe the deserve Ryan and deserve all getting booted in 2018.
IIRC, there is no rule or law prohibiting a non-elected person to be nominated and be elected Speaker of the House by it’s members. .
Just as there is no actual Constitutional requirement that a Justice on SCOTUS actually has to be a Judge previously.
The practical problem arises where what theoretically is possible meets the world of reality.
Before you go down that road, consider this. I spoke with on if my Trumpian Deplirables on the perifery of the GOP machine, approx 3 weeks ago. He was ok w/ Bannon gone, Kelly's tight ship, but was nervous as a businessman as w/ out tax cuts and Obama Care gone, this whole thing would stall. He then mentioned Newt, coming aboard, possibly COS. The point is Newts name came up. Take it the bank, if my bud is taking about it, this is bigger than we realize. Newt, got chit done, and no he doesn't have to be speaker to be S.O.H..IMHO Ryan is toast as speaker,question begs, when is Mitch done. This debt ceiling deal? PDJT just took an act of the kabuki theater play away from them, it is actually funny smuckey bought it....