Douglas Costa needs to step up for LA Galaxy

He may be adjusting, but the team needs him now. The LA Galaxy have the most distinguished history of big-name Designated Players in MLS, and also possibly the most checkered. David Beckham? He is a historical figure for starting the DP era, but his tenure at the club started rocky before ending in storybook fashion. Robbie Keane? Absolute success, one of the best players in MLS history, period. Steven Gerrard? Well he played, but he wasn’t very effective. Giovani dos Santos? Ditto. Jonathan dos Santos? His seasons in LA were like a box of chocolates. Zlatan Ibrahimovic? The team around…