Give Aurier a chance mate! He did more than Trips in the 27 mins he was on than Trips has done every game combined this season. A cross is very, very, very low percentage, they rarely result in goals. It's not that X, Y or Z player can't cross (corner or in open play) it's because they rarely come off because it's hard to perform and easy to defend against. Trips crossing, his only famed asset, has been woeful this season, I mean he has lumped in 36 crosses this season from 4 appearances and just 4 of them have found a Spurs player!! Proves the point that crossing is low percentage and maybe that he just isn't that great at crossing as people think.
Aurier has played less than half an hour of prem football, made 8 crosses and and found a Spurs player with one. I'd further argue that the position of the cross from Aurier is far more dangerous than from Trips because his crosses come with him getting behind the oppo defence, Tripp's crosses are hit early as he doesn't get behind oppo defence. The are loads of knock-on issues with this as ashram Tripp's crosses the oppo can use the ball better than Aurier's as they are facing up the pitch when they win the ball back, there is less panic more controlled re-gain of possession by the oppo, this limits our chances of counter-pressing the oppo too.
Having said all that, it was hugely frustrating on Sat to watch cross, after fucking cross pumped into the box only for us to stop doing that when we brought on Llorente! The mind simply boggles at this.