Clearly there are big differences between Union forwards and League forwards - league players are all essentially Union backs.
Most league players who switch don't want to be forwards in Union - if he wanted to be a lock and was prepared to put in the work to be one then I think Sam could be a very powerful lock.
And shoulder charges were perfectly legal up until last season, so he isn't allowed to do them in League now either.
The big thing for him to work on would be his discipline - not being a WUM or being wound up.
On the Scotland game, and assuming May is out:
9. Care
10. Farrell
11. Watson
12. 36
13. Burrell
14. Nowell
15. Brown
21. Dickson
22. Ford
23. Eastmond
That lineup means you have people who can genuinely cover IC, OC, wing and FB.
It gives 36 a chance to improve but allows us to put another distributor in at 12 if he doesn't.
If Mike Brown gets injured then one of the wingers can go to FB and Kyle can go onto the wing.
I don't recall too many lineups that give you that degree of genuine flexibility.