Why you dropping Mo? He went off the boil in the WC, but he's like that, bit of a hot and cold cricketer IMO. On his day, he's a match winner and he'd be in my side every time (more or less).
Although Smith's alleged weakness against left arm orthodox does make Leach interesting.
Also, who you giving the gloves to? If Buttler that's fine, however, if Bairstow, then he bats 7 for me, Buttler 5.
Can't have a keeper and all rounder above a specialist batsman in the order, again IMO.
I'd be very keen on Buttler at 5 as captain and a specialist batsman I reckon, and Root at 3.
edit. Buttler 4, not 5.