By picking more batsman in there XI and having the team tactic of occupying the crease, not worrying about batting run rates and bowling negatively.
SL could play.
5. Black Magic
Overs to be bowled predominately by Kulasekera, Herath, Dilshan and Mathews. Bowl negatively and to a ring field.
I think batting down to 9 means that the opponent trying to force the pace will not want to declare too early with the extra batting strength.
Obviously this is such a negative tactic and I would hate a team doing this at home, but I honestly think that its a plausible option for a few countries who have weak attacks when playing away from home, preventing 3-0 loses.
If Cricket ever ends up ever having a Test Championship, just say with points awarded like in football with 3 for a win, 1 for a draw, this would be the equivalent of a poor team parking the bus in front of the goals.
Crazy, Stupid? no, no.