Well, first of all, Oier is right footed, not lefty.
I'm very impressed with his progress last season. He's shown he is one of the best CB of Segunda Division, playing almost 30 games in a row in that position, so i'd firstly change his position to CB as the main one, and SB by both sides as second.
He is not that kind of a strong, huge defender who is powerfull when the ball is in the air. Oier is the perfect couple for that kind of player, as he is a fast CB, very agile and with a nice jumping, always covers the hollows left by his partner in defence. He compensates the other one's low speed. His Heading is also better than what this stats show, and especially his TW and MENT are impressive, he is a valuable team player, a winner.
So, summing up, the stats i think need to be urgently updated are the next ones:
-DEF: This one is the most obvious to be raised, I'd say 78.
-RESP: Around 80.
-JUMP: 81, more or less.
-HEAD: maybe 76-78.
Well, this is a beginning. Tell me how you feel about these suggestions guys!