There’s been a lot of talk throughout the offseason regarding how the Buffalo Bills’ offensive line situation will shake out. Some spots, such as Dion Dawkins at left tackle, Mitch Morse at center, and presumably Spencer Brown at right tackle are set in stone (though an offseason procedure has forced Brown to miss mini-camp and OTAs). Despite the moves the Bills made in the offseason, general manager Brandon Beane seems to feel that there is still competition at the guard spots. The competition, and the offensive line as a whole, will get a good boost from new offensive line coach Aaron Kromer.  One of Kromer’s former players in Los Angeles with the Rams is Rodger Saffold, who signed a one-year deal with Buffalo in the offseason. He’s expected to be in the starting lineup when he heals from cracked ribs he suffered during a car accident earlier in the summer. In addition, after the Bills matched Ryan Bates’s restricted free agent offer from the Chicago Bears, he is expected to take full control of a starting OL spot. The Bills also brought in-depth players such as Greg Van Roten and David Quessenberry, and chose not to release second-round disappointment Cody…