By Grey Whitebloom Roy Keane’s time as a footballer was laden with accolades and admiration but it was not without some missteps. Yet, when reflecting on a playing career which included 11 red cards, boycotting a World Cup and getting pushed out of Manchester United, Keane chiefly regretted not leaving the Red Devils sooner. “I wish I bloody had!” the Republic of Ireland international seethed. “Part of me is jealous now when I see other lads going abroad because it’s a great experience for your family.” As the end of each transfer window comes and goes, there are scores of players who are lumb…