He's actually in his fourth year on an AFL list not fifth, having been at Adelaide for three years before coming to us at the end of last year.
He might well be a spud but let's not forget that most ruckmen take a long time to develop.
Take North Melbourne's twin towers - Hamish McIntosh (drafted 2002) and David Hale (2001). The Kangaroos fans were calling them spuds a couple of years ago and they've only become servicable ruckmen this year, their sixth and seventh seasons of AFL respectively.
Agreed that Meesen has shown little to date but I would imagine that the club's recruiters would have been aware when he was drafted that he was not going to be an overnight sensation.