Defending leads used to be a forte of Jose Mourinho but not anymore.

Arsenal's manager Mikel Arteta reacts during the English Premier League soccer match between Burnley and Arsenal at Turf Moor stadium in Burnley, England, Saturday, March...

Arteta had billed the coming week, starting with the visit of Chelsea, as a “crucial” period that would determine which direction Arsenal was heading this season. A first...