Robinson's all blood and thunder but he's always one wrong move away from either a catastrophic error or a straight red card. For all his effort and being the best of a horrific bunch last season doesn't mean he's a good defender or footballer, he was just slightly better than Trusty, Anel or Holgate, shouts a lot and has been here a fair while so gets the captaincy.
It's all relative to the piss poor alternatives at the back last season and now we've brought in Gilchrist and Souttar, his head has to be on the block, captain or not.