Is that interview a new one? Why is he talking about splitting with McNamara and working with his father again when he should be still working with Mouratoglou?
It's the latest interview from Queens. He's still 'in collaboration' with Patrick's academy, meaning training there, using facilities, etc but his father is the one travelling with him on the tour (for now).
Here's my interpretation of the entire coaching situation:-
He's been training at Patrick's academy for 3 years now and it looks as if that will continue. During those time, Peter Mc was his travelling coach. When they parted, he was looking for a coach but unsuccessfully so Patrick was kinda fill in and probably that didn't work out either probably because of his results in the first half of 2012 or probably because of Patrick's own commitment (he's a busy man with the academy to run and various media jobs.)
So now his father fills in the role of travelling coach. They also travel with a trainer (probably from Patrick's academy). I hope his father can leave everything at home (jobs, etc.) and travel with him permanently.
Travelling with father will do him good, gamewise and life in general. I feel like Grigor is still a baby and has so much to learn socially. From his interview, he still talks like teenagers with "you know", "stuff" etc. (If you listen to Milos interview, that's a thoughtful one).
Ok, I'll stop hard talk and continue fangirling like 13 years old