Perhaps the most surprising thing said at the signing day press conference that struck me was Ed Lamb's comments on Dimitri Gallow. He said Gallow was one of the best bump and run coverage prospects he had ever seen, and was so good at it that he hopes Gallow will teach some of his BYU teammates his skill set. His Hudl footage (linked below) does show a lot of clips of him being physical at the line in coverage.
I get the feeling that Gallow, who held a Big Ten offer at one point (Purdue), will end up being a serious contributor this season despite all of the good young talent we have coming back at corner. He is definitely a newcomer to watch this year.