The striker position is the hardest position in the world to get right in the transfer market.
We're looking at Man City and if they had bought Harry Kane everything would've been sown up by now, but it does look like they could still win the Premier League and the Champions League without a centre forward.
That's not the norm, in my opinion. Everyone needs a good centre forward.
Spurs are where they are because of Harry Kane, not just his goals but also his all-round play.
It's a difficult situation for Arsenal.
They went for Dusan Vlahovic, who was at Fiorentina. He ended up choosing Juventus, and that is where Arsenal are at. Juventus are as far away from winning Serie A as Arsenal are from winning the Premier League.
It's difficult. We can all say after the event that they should have done this and they should have done that, but four weeks ago we were waxing lyrical about them and how great it was going for Arsenal.
It changes very quickly, and it can change very quickly again.
Arsenal's game at Chelsea is an easier game than Spurs' game at Liverpool in a few weeks. Chelsea haven't really got anything to play for in the league whereas Liverpool are still going for the title.
Arsenal have to try and take advantage this week. They are big games against Chelsea and Manchester United, but two positive results and they could turn it all back around again.