Naby has been far less useful to us to than Karius, who was our #1 on the road to a European final. We spent less than 5m on a so-called number 1 keeper versus more than 50m on a midfielder who was supposed to link attack and defense, be a tenacious tackler and ball recovery machine, and anchor our side for at least half a decade.
I don't begrudge Naby his fee, although his failure to live up to even a fraction of it, has had massive impacts on us. After Karius failed to live up to what we need, we could go spend a record fee on Ali. We couldn't do the same in our midfield after Naby.
I begrudge him his failure to start learning English in the year prior to his arrival, his lack of application on the pitch, shitting out of tackles, THAT shot in the European final, his inability to stay fit for more than a week at a time, his inability to be available or impactful ever, and his wanker of an agent.
He has undeniably been the biggest transfer whiff since Andy Carroll or Diouf and arguably the worst overall.