This is what I think happened...after bharti acquired zain they most probably asked the existing CEOs of what they needed to break the deadlock or to spur growth.
Now Rene meza had everything figured out,reduce the calling rates and then lobby for the MNP (A very simple strategy in my view)...His bosses gave him free reign to implement the strategy while at the same time watching him closely to see if his strategy would work.
Several quarters down the line the strategy was a cropper...so meza did the most honorable thing apply for a Job with the competition..which obviously are edgy having seen how bharti business model has survived for months with 'unsustainable'low rates....just like Bororot the competion was dieing to recruit him just to get the inside scoop of Bharti....
IMO I think we have seen nothing yet from Airtel....watch this site.
'......to the acknowledgment of the mystery of God, and of the Father, and of Christ; 3 In whom are hid all the treasures of wisdom and knowledge.' Colossians 2:2-3