I'd be happy with those 4
Patterson has a lot of potential and size in the back row and is a very hard trainer. Halatau many will question but he gives great versatility being able to play centre,back row and hooker ( which as we need a back up to Robbie) and he has always been fit and strong and again like Patterson , Richards, Leulia all 4 have a reputation of bringing the right culture to a club which is what potter is trying to do
Patterson has a lot of potential and size in the back row and is a very hard trainer. Halatau many will question but he gives great versatility being able to play centre,back row and hooker ( which as we need a back up to Robbie) and he has always been fit and strong and again like Patterson , Richards, Leulia all 4 have a reputation of bringing the right culture to a club which is what potter is trying to do