SL bowlers Malinga bowled at times 91 mph but mostly on 89+ mph. Fernando bowled on 85-90 range. Maharoof bowled with the dew (which speeds up after pitching). 3 seamers.
If you had seen WI on the same ground against Zim, their speed was between 75-85 range. In day time there is no dew so the ball can't speed up. Also, they bowled wayward. It was the Zim's inability to play the awkward bounce, and too much fishing. Certainly WI bowlers are 2nd grade or 3rd grade world class bowlers. If our top order can perform decently, we can post 275+ against this attack. That is a target that would get harder to reach at night even for Australia.
So the key is to bat first on this track. There is a huge chance of winning against the WI for the first time. Lara would have to retire then. Didn't he garantee last time if he lost against BD he would retire when we visited WI? Or was it in test?