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The former Test all-rounder has been criticised by other ex-players, but Harper believes his methods will bear fruition.

"Our sessions have been designed in a manner that will help to prepare guys for performing when they get out in the middle," said Harper after the 82 run defeat in Antigua.

"Obviously, I think this will emphasise the fact that it is a big gap between the Busta Cup and Test cricket and I think a lot more application and determination and concentration is required.

"I think we have a very young team. The guys are still finding their feet, they are learning. Having said that, we have to learn a lot quicker and we have to play a lot smarter."

Part of that quicker learning involves correcting technical flaws with the help of technology, but the main input has to come from the players cautioned Harper.

"They are a number of players getting out in the same manner. We have to understand that technology is just a tool," he said.

"It doesn't help you to play any better when you get out there but it helps you to identify certain things like strengths and weaknesses and strategies that people are using against you and that you can employ."

Harper's captain Carl Hooper warned of long process to rebuild the side after West Indies' 10th defeat in 13 Tests.

"I said even before I was made captain that this was not going to be turned around by one or two individuals, " he said.