Gueye is as good as Kante
The problem being we don't play to his strengths . The minute he has to do more than just run around throwing tackles in and breaking play up, his effectiveness goes down .
Part of the issue is that siggurdson isn't the quickest and our attack doesn't break quick enough. So it means the ball doesn't leave the middle quick enough inviting pressure into the ball players , ergo gueye and gomes. If siggurdson was a ball carrier for example then we could move the ball up the pitch quicker , or if we had a front three to release when he got the ball then we could transfer from defence to attack faster.
What's that got to do with gueye? It means when we get pressured in the middle and in some games overpowered in midfield, gueye then has to take on a different role to relieve that pressure meaning he has to play more as a central midfielder . We get very congested with 3 cm so they all have to do the same role.
Whereas if we could move the ball much faster with gomes and siggurdson then it frees gueye to only perform the sweeper role , or Kante role as its now known. He doesn't have to get a foothold in the middle, he doesn't have to care about the attackers . He simply has to win the ball and then give it to someone who turns it into an attack.
Long ramble but hopefully you get where I am coming from.