Boskovic is inexpensive as far as MLS Designated Players go. He may have neither the name nor the talent of the marquee DPs like Henry, Beckham, or Marquez, but he isn't paid as they are either. Nevertheless, he does make nearly double of the next player on the team, but he hasn't led DC to glory.
If his primary talents do lie in passing, then it can be expected that it will take time for him to adjust to the team as his teammates learn to read his passes and he learns to read their movements. Moreover, the attackers in front of him have struggled all year and, to a man, lack speed to really exploit through-balls into space.
Boskovic, for his part, however, has failed to adapt. He has still failed to adapt to the physicality of the league. He is, no doubt, being hacked. But that is an element of the game in MLS. Moreover, the same charge that I leveled against Gallardo, I level against Boskovic - he cannot play the game as he wants it to play in his head. The Austrian Bundesliga may have superior players to Major League Soccer; maybe they are tactically more aware. Boskovic is no longer playing in the Austrian Bundesliga, he's not even playing with a top MLS side. It could be simply that he is an above par player who doesn't have the right skill set for MLS. However, more often he passes to players who are well covered and that's when he doesn't pass it directly to the opposition. I would be less critical if he were getting the ball to his teammates who subsequently lost it. Often he looks par for the United course: he spends too much time of the ball, dribbles into the traffic, and then gives the ball away.
What about next year? A lot of fans seem to think the Boskovic is not worth the money that he is being paid, but it is unlikely that he will stay at a decreased salary. I am tempted to give him the benefit of the doubt; he was tossed into a horrible situation, it took him some time to get match fit, and given all the injuries, he has had no consistency in the starting eleven due to injuries, and frankly, DC does not have the type of talent necessary to be competitive in the league this year. So, I want to see what Boskovic looks like with a rebuilt team and with an offense that was actually designed to incorporate him. Frankly, I still don't know who he is because this year looks too much like an outlier.