While I think the passing thing is being overblown given the recent contributions Oscar has given to the team, I also believe those frustrations are completely acceptable because we're talking about pro footballers here. They eat, sleep, and breath football, it is reasonable to expect them not to misplace easy passes that even amateurs wouldn't, especially if they're misplacing them in a regular basis. It's just a matter of frustrated expectations. If a player can't execute 40-yard passes consistently he won't get bashed for it, maybe for trying them too often when it's clear those are not his thing. But basic passing is just something every player is supposed to have, and if a player is struggling at that he'd better work on it because that's a really serious issue. Whether it is technical or mental it must be fixed as soon as possible, especially when we're talking about a young player.