Pietersen also claimed that Flower had an issue with him throughout his five-year tenure as coach.
Ramprakash said that Cook is one of the most successful batsmen in England Test history.
The selectors are reportedly divided over retaining Cook as captain ahead of the 2015 World Cup.
Moores refused to confirm whether Cook will captain England at the 2015 World Cup.
Peter Moores has admitted that the squad faces a race against time ahead of the World Cup.
Alastair Cook has 3,030 runs from 84 ODIs at an average of 37, with a strike rate of 77 runs per 100 balls.
Ashwin said the India's inroads in the middle-overs set up India's two wins in the ODIs so far.
These two losses have thrown England's 2015 World Cup preparations off-track.
Moores has been reportedly backed to make a big success of his second spell in charge.
There have been some sweeping changes in team managements of top teams across the globe.