I reckon Lynch would be so much better with 2 other talls around him on the forward line. (Reiwoldt and CCJ/Chol). Means defenders can't drop off as easily. Look at the successful teams atm - Melbum - talls everywhere in forward line (McDonald, Brown, Weidmann) Geelong (Hawkins, Cameron, Ratagulea) Brisbane (Daniher, Hipwood, McStay) West Coast (Kennedy. Darling, Allen). Port (Dixon, Georgiadis, Marshall) Only us and the Dogs seem to be going with only 2. The other difficulty is we then push 1 (or even 2 at times) extra mids up from the forward line leaving only 4 forwards, way too easy to defend.
An extra tall forweard would also alleviate the workload from Nank who is going to wear out very quickly!