By Joseph McBride Manchester United continue to struggle under the ownership of the Glazer family, but elsewhere their NFL team Tampa Bay Buccaneers continue to enjoy success. The Glazers own both United and the Buccaneers, although they recently sold 25 percent of their ownership stake to businessman Jim Ratcliffe. The Glazers have handed off the football responsibilities at United to their new partner, but even after the £1 billion deal they remain in control of the club. United have not won the Premier League title since 2013, and in the last seven years they only have a Carabao Cup to show…