Why Carrick may not be shoo-in for Man Utd job

Manchester United have won the most points in the Premier League since caretaker boss Michael Carrick took over in January, so it seems a no-brainer to give him the job on a permanent basis. But dig a little deeper and the decision is not so obvious as the stats warn that, as brilliant as results have been, they're unlikely to continue in the long run. On the surface everything looks hunky-dory under Carrick. …