The West Indies lost too many wickets in the first 20 overs of their batting. In the first two phases(0-10, 11-20) they lost 22 wickets(37.30%) of total wickets. During this period their run-rate was well below 3 and higher % of Eco rate (31.00% maidens, 75.20% of Less than 3 runs).
The best part of their batting comes during the fourth phase(31-40)overs when their run-rate is 4.19!!.
Here is how they performed against Australia in last 3 Test played this year.