Looking at it we have Hanley as the experienced option then these youngsters coming through
J Souttar
H Souttar
Lindsay
McRorie
Bates
McKenna
Hendry
As well as berra, Martin and mulgrew for one more campaign potentially. Even guys like Findlay and Wilson and Hanlon too but scraping the barrel with those a bit. Also Tierney and Kingsley can play there if needed.
All we need is half a dozen of them, and could mount one last attempt to get Caulker.