You really think Serong has done "almost everything Walsh has done"?Yeah, whatever you do, don't respond to what I said in regard to Caleb Serong - you wouldn't want to lose an argument now, would you?
The last step is the hardest, the one from a good player to great. The leap from one of the best mids in your team to one of the best in the comp is a large one.
Serong may get there (he's actually awesome to watch as a neutral), but to say he's close to Walsh is misguided.