This was true in the Prem, when all Montero had behind him was Neil Taylor, who would be nowhere near Montero 90% of the time, leaving him to be double-teamed out of possession. When Taylor was there, he'd receive the ball and play it back to Ash Williams, regardless of the game situation (think Taylor took his defensive responsibilities too far -- he'd try to stop both sides from scoring). With Olsson / Grimes in behind, Jeff should finally get the support he needs and Swansea can take advantage of any side trying to double-team him out of the game.