Well we need someone experienced opening with Marsh for 15 months then bring Warner in.
Problem is who? Katich is the only one but I would prefer one guy going at a strike rate over 90. Plus his fighting skills look needed in the middle order and against the spin. Also Watson is going to open after the SA tour so Katich will once again make way for Watson and yet again shatter his confidence. Hence may as well give Warner more experience at the top level, also gives him a chance to cement his spot with some good performances, or just experience and things to work on in the future.