It may be a harsh verdict but Tottenham Hotspur is a big club and the 25-year-old needs to up his game.
After three Europa League appearances for Tottenham, Kieran Trippier can unfortunately take credit for one goal per game being conceded as a result of a direct mistake of his own.
Against Qarabag, the right-back conceded a penalty. Against Monaco, Trippier was bested and, in Anderlecht, the defender was once again caught out as the opposition headed towards goal.
And, so far this season, the man who played so well at right-back for Burnley last term just does not look good enough to play for Tottenham.
It may seem a harsh verdict and it may be a little unfair considering a lack of regular game time for Trippier.
But you need to take your chances at big clubs like Spurs.
Trippier was brought to White Hart Lane this summer with providing competition for Kyle Walker in mind. There has been no sign of any competition, however, with Walker free to slot in at right-back and perhaps even deliver a far-from-perfect performance in the knowledge his place will still be safe.
Is Trippier simply too nervous? A bit like with Harry Kane, Mauricio Pochettino must also shoulder some responsibility, step up and man manage an improvement out of his right-back.
A loan move later down the line may also be a sensible alternative. For, right now, Spurs can keep playing Trippier in the Europa League but, on average, it'll cost them at least a goal a game.
It's disappointing to see how the 25-year-old has started his Tottenham career as many would no doubt have hoped for an upgrade on Walker.
Disappointments are there for someone to bounce back from, though, and Trippier needs to prove his move to north London was worth it - both for himself and the club.