Test great Sir Garfield Sobers believes West Indies are paying the price for taking England too lightly.
Sobers threw his support behind beleaguered skipper Lara
The tourists secured their first Test series victory in the Caribbean since 1968 with Saturday's eight-wicket win in Barbados.
"What is happening is difficult to understand," said Sobers.
"Coming back from South Africa, where they did so well with the bat, and not seeing the England bowlers they probably underestimated them."
Brian Lara's side suffered a 3-0 defeat in South Africa prior to England's visit, but scored eight centuries in a high-scoring four-Test series.
In contrast, West Indies were bowled out for a record low 47 by England in the first Test and tumbled to a Barbados record 94 all out in the third.
"They have a lot of ability, they are a very good team," Sobers stressed.
"Any team that can score over 300 every time is not bad."
Sobers believes Lara should not be replaced as captain even though his team could concede their first ever series whitewash at home.
"Who do you have to replace him? There are some players in the team but they have not reached the standard yet that they can replace Brian Lara," he said.
"If Brian Lara is in the team I don't see how you can replace him."
Captain when England last won in the Caribbean 36 years ago, Sobers praised a change in selection policy for the tourists' dramatic change in form.
"England have been on the right track for four or five years and they will continue to improve," he said.
"They have gone from bringing back the older players when things go wrong to sticking with younger players.
"But they have been helped by some of our players, by some of the shots they've played."