FWIW, Kyle Shanahan had big problems with RGIII. The first signs of discontent with him came from Kyle publicly calling him out in the media. Kyle requires a quarterback that runs his system precisely without waiver. He would take one look at the game film where Tyrod misses wide open receivers and Tyrod would be gone in a New York second.
With the experience of his father guiding him, there is no way Kyle would come to the Buffalo Bills. His father would advise otherwise.