In so many ways it's impossible, even unhelpful, to compare TC and IN.
We currently have a young player who is showing us glimpes of his undoubted talent, and like many Blades it seems that there's so much more to come. Given time, quality coaching and advice, then who knows what Ndiaye can become? He certainly appears to have the potential to excel, but as we've seen far too often how many talented youngsters show this type of promise only to hit a brick wall and never go beyond what we had hoped they'd be able to achieve.
Currie had a similar journey to Ndiaye. Beginning his career at Watford, TC moved onto the Blades and it was at Bramall Lane that he developed into a masterful player, someone capable of taking a game by the scruff of the neck and dominating the opposition. Sadly, as with almost every talented player we've had TC moved to what was then a club with greater potential (you have no idea how difficult it is to write this!) from where he continued to show his considerable talent. Players like TC are mavericks who are expected to fit into a pattern that suits the whole team, but the reality is that they need the freedom to exploit those parts of a game that are there to be used for our benefit. A wonderful player, they broke the mold when TC hung up his boots. When football is referred to as entertainment it is TC that comes to mind, along with the great George Best and several other great players.
Ndiaye could become a great player, but first he must apply his life to the things that will contribute towards this. If he can ignore the hanger-ons that are bound to gravitate, if he can push himself to levels that he currently suggests is possible, if he can avoid serious injury, only then will this talented young player fulfill his potential and show the world the wonderful talent that is clearly there.