Surprisingly, yes. I actually do plan on moving him, and wasn't because you said that Edrick was going to Highgarden. If Garland say, wrote back, saying to her first of all (ie. before even Willas, yes) that "Yep, I'm going to KL to be Hand", then that might work. Who knows, the Hand needs to make a new council, and no doubt, he will probably be lenient as fuck to people across the Kingdoms, giving it to a lot of people who might not otherwise seem important.