Are you thinking Wiegers at Eastern Michigan? He got beat out by Stanley, and had one okay year at EMU as a grad transfer (didn't light the world on fire there).
Good call on Sokol, he had a good season at La Tech. He was in the 2012 class with Rudock, so also ended up being behind Rudock and Beathard.
You know what is wild? It is possible that Rudock and Sokol (2012 recruiting class) and Beathard and Shimonek (2013 recruiting class) are the 4 best QBs that have been on Iowa's roster in the last decade, and they were all in the QB room at the same time. At the very least, I think you can make a strong argument they take up 4 spots of the top 5 based upon proven college production (Stanley with the remaining spot). Maybe we need to give Davis more credit than we do, especially as a QB recruiter and coach.
bonus Iowa QB transfer info: Peyton Mansell (Abilene Christian) and Ryan Boyle (Ind St.) both transferred and had mild success at lower levels, nothing eye-popping