Having seen his impact in the shorter forms I would expect Chris Morris to come in and do a job. I don';t think hes a great bowler but he's a real competitor and will give everything.
It's tough selecting a squad when solid picks are deserting you, look at Abbott and Harmer for starters. I'm not convinced that Van Zyl or Roussow are Test players, Roussow might be a good ODI pick though.
What happened to Marchant de Lange? And then the other guy down at Glamorgan, Colin Ingram? Is he actually much different to Roussow though?