Gillingham head coach Stephen Clemence hopes he’s found a winning formula. Clemence switched formation over the Christmas period by playing a 3-5-2 formation and it’s increased their attacking threat, with 40 shots in their last two games. More: Gillingham substitute seizes his chance While scoring goals remains an issue, creating chances isn’t. “I think the three central defenders were excellent again,” said the head coach after the 1-0 win over Sutton United. “We have obviously changed system in the last couple of games and I have been pleased with what I have seen. “We’re playing three defe…