Jordan Mills’ roster spot in danger?

Kevin Hoffman-USA TODAY SportsThe Miami Dolphins signed veteran offensive tackle Jordan Mills on May 9, adding a presumed starting right tackle to the roster. The team added Mills shortly after the NFL calendar passes the window in which free agent additions can impact compensatory picks in the next Draft. It appeared the Dolphins had targeted Mills for the offensive line, but waited to make sure they would still be in the running for extra draft choices next year before they added the 2013 fifth-round pick by the Chicago Bears.

Mills, who also played for the Dallas Cowboys and Detroit Lions, spent the last three seasons at right tackle for the Buffalo Bills, so the presumption that he would…