Don't think Burn is right as a LWB.
Honestly I think Solly March will be a back up for whoever we bring in as LWB, if we manage to.
Seems clear Potter wants to play with 3 at back and wing-backs. They have to be strong in that role.
As a professor in potterology I have to object to this. There will be more than one formation, trust me. And in a four back defense, Burn is still a great LB. And even if I agree he is not the optimal LWB, he wouldnt fail there either. New signing is not impossible but I think its unlikely. Perhaps this Gonzalez fella is targeted both to fill the LWB and backup striker holes in the squad.