In the face of mounting wins, the Warriors’ head coach is tasked with highlighting areas in need of improvement. On Monday night, while pundits focused on the dominant first half that paved Golden State’s 126-91 rout of Cleveland, Kerr zeroed in on yet another second-half letdown. In the third quarter, the Warriors mustered 17 points on 5-of-23 shooting with seven turnovers. When up big, Golden State tends to get complacent, make sloppy passes and pile up giveaways. Two glaring fourth-quarter meltdowns — one on Christmas in Cleveland, the other Jan.