Top sides have shown that mobility in the pack is better in today's game than size. You need a balance for sure but I'll say for certain we can't entertain having guys like Knight, Hazelton, Saifiti even NAS if they are partnering Klemmer in the front row. The best 8, 10, 13 combo we have had this year is Pole + Sione F + Stef.
I agree we need to bolster the pack, but not with another big lump to replace stef, we have plently of those.
We need a dynamic athlete who can give you 40 high octane minutes over two stints.
The Spencer Leniu mould would be ideal. We need a greased up pig not a giant Clydesdale.