I kind off admire how much he improved from where he started, around a year ago he looked like a player who shouldn't even be in second division, never mind La Liga or Barca. Today we can call him serviceable which is massive difference, even if part of it because of how shitty our defense anyway.
A guy like Mingueza is the closest to him in that regard, but Oscar was still fairly young and was a long time La Masia kid