Longstaff was brilliant on Saturday. But let's not get carried away, he has been dogshit for most of the season (not the only one though admittedly). Him, Bruno, Joe, Willock, Isak all raised their games and therefore we won reasonable comfortably. If the team truly has gotten it's mojo back then Longstaff will continue to play an important role as others have outlined. But should things get a little difficult again and we need to do something a little different, be more creative for instance then his limitations will be on full display again.
Yeah Bruno/Tonali is a difficult one. From Eddie's interviews, he focuses on Tonali's flexibility so you think he's not quite yet figured out where his best position is. Also says Bruno's style is suited to deep lying possession, and Tonali's is more athletic. All of which makes sense and indicated the thinking still is for Bruno to be the holding man and Tonali to take up the box to box role.