I'll answer this as a wider point. I fully appreciate that CW & AK, are the experts and have got us into the premier league, and they know what they have done, are currently doing an will do, and mine is just uninformed alehouse opinion, but I believe that we will have to adjust our formation next season and be more pragmatic, certainly away from home. Or we might not. That's two positions.
If it's the first one, I think that we'll play a 3-1-4-1-1, sacrificing the 2nd striker and the Duffy role, for a hole player & a defensive midfield screen. In this situation the two critical positions are the lone forward who has to be a Che Adams type player and the midfield screen who has to be a Drinkwater type. That's not to say that it either of those players, just that it is their type of player. Because the required quality of those two positions dictate that they are PL experienced or at least have sparkled in the champ and look like they can make the leap, it would make sense that we loan them in from the PL. The role of the hole player can then be filled for next season by McG in a Zlatan-esque role or Duffy from the bench for the last 15 to 20 mins if games. In this situation I don't see a need to pay circa £6m for Jota.
If its the second situation, and CW believes that we can go out next season and mirror this season's formation and approach, then the two crucial roles are the 1st line striker and the Duffy role. Again the required quality would dictate that they are both loaned in from PL clubs, and again I see no reason in spending £6m for Jota.
If I were offered Jota for £3m and he was brought in to replace Duffy as 2nd choice; I'd be ok with it, that's where I see his level.