I think Smith is a trump card we have to play....I think it's hard to drop Gill out of the team.....
Agree. Smith and Gill are very similar in their fetching abilities and both better than Hooper while Hooper's miles better with ball in hand. It's gotta be one of Smith or Gill (in my opinion to start) with Hooper to come on with, say, 25 minutes to go. For mine, Smith's outstanding ball-stealing abilities would negate the overwhelming possession the BILs had in the first half of the Melbourne Test.
After this series Gill should be the starting 7 until Pocock reports fit for duty.