No, I struggle to think of any true set piece specialists we've got to bring in
The meta the last few years has been for hybrids and front rowers who play like backrowers
In terms of a 5:
Think Isiekwe is growing into a good tighthead lock since he's stopped being put in the backrow, he's bulked up quite a lot
Tizard has promise, but will be fighting with Isiekwe for Sarries 5 shirt when everyone's fit so might end up at 4 with Itoje at 6
Chessum reminds me of a younger Isiekwe in that he looks like he'll be a fantastic lock but keeps being put at backrow - looks to be settling at lock now, though, so hopefully get him on the South African biltong diet and get some meat on the bones
In terms of frontrow:
At loosehead I can't think of any setpiece specialists. Rapava-Ruskin going well this season, would be interested to see how he does internationally. Rodd definitely excels more in the loose/breakdown than scrum
Hooker would be Walker for me - remember Marler saying Walker contributes massively to Quins scrummaging. Also got good darts.
Tighthead: Heyes, but he's still developing. James Harper looked like one to watch but think injury is going to stop him developing at any real rate, he's out again atm.