An article published in
Aviation Week on 20 October 2014, contains an interesting look at the continuing saga surrounding the original Inmarsat data. It compares that data with that released by the Malaysian MoT, the continuing reassessments being made by the ATSB on where to search, and the conclusions of the so-called Independent Group who have continued to point out the errors they claim have been made by the ATSB's panel of experts.
Links in the article will show that the movement in the ATSB priority search area has always been in the direction of the location that the IG have been promoting.
The ATSB's
MH370 Flight Path Analysis, which is a PDF file.