"First of all it's not ideal. With the laws of the game as they are Sri Lanka are entitled to appeal. They warned Buttler. Buttler did exactly the same thing again. Senanayake is allowed to do that and [captain Angelo] Mathews is allowed to uphold the decision. We don't like to see that, but why have that law when it can't be used. The law needs to change so there is something else instead of a consequence of being run out, or you can just put up with it."
I think it's sensible captaincy, he's giving Root a few overs when SL are trying to stop a collapse so they're not going after him, if we can get 4-5 cheap overs from Root now he can bring Tredwell back if they try to escalate again.