My comment isn't directly related to Telles, it's related to our transfer policy in general. We massively overpaid on Maguire because we dithered and portrayed desperation, same goes with Fellaini.
The longer the transfer window's run, the more desperate we look for signings, and that's when we get fleeced. Also, the selling clubs need/want compensation when you drag it out, as they won't be able to replace their player - and if they do manage to bring in a target, they have to overpay for their replacement, too, as it is known that they now have money from our transfer.
If we did our business early, instead of feckin around, we'd be in a whole lot of a better situation financially, and that's not to even mention from a footballing perspective. Player's rarely hit the ground running when joining a new club - they need time to bed in. If we bring someone in next week, realistically, he won't have as much of an impact on our results as he would have, had he had time to work with his teammates when the window opened.