Aaron has played, how many, 19 FCs and 19 ODs. Together, that's a little more than the number of games Ishwar Pandey and Rishi Dhawan each have played in FC. Aaron's not played much active cricket to be in shape so soon. Hope they don't lose him.
Back to Dhoni as captain, I feel it's time to move on. He's been at the helm for nearly seven years, so now is a good chance to change. Lack of tournament wins apart, the staggering count of player losses (Irfan, Mishra, Murali Kartik, Gambhir, Umesh, and several ignored Ranji stalwarts, not to mention how Ishant and Rohit have been poorly managed) isn't good. Largely the outcome of Dhoni backing only his preferred players, instead of being impartial and working with the best players the selectors provide him. I'm not even sure he's much of a strategist or tactician- his style of captaincy is only about standing by his friends.
I guess Dhoni has something to offer, maybe as limited-overs captain, but the selectors need to get rid of that club of players he's nurtured, and pick the actual best players in India. And, of course, get rid of Fletcher. Things have gone downhill since he's taken over. I've yet to find anything positive that's been introduced by Fletcher.