I don't think 7 is going to be the weakness in the Reds side that some people are making it out to be, let's not forget that Braid missed a few games in 2010 and the Reds still played there style..
Moving away from Gill firstly, Ed Quirk is a very good player who's long time position will probably be blindside flanker, but he is quite quick over 40m and can play a quite decent ball scavenger role and is a very good linkman,
I think we will see Shatz bulked up considerably in 2011 to become a genuine number 8 alternative, so I can't see him playing much at 7.
Then there is Lei Tomiki, people have commented on his 2010 form as been bad, well unless they went out to the trial matches to watch, then they are basing that opinion on the one game of rugby he actual played with the Reds at S14. Lei is a very good ball scavenger, numerous injuries hindered him In 2010, McKenzie was his coach in NSW for a short time and also coached against him in France, so I think he was signed on a little bit more then reputation.
Let's then not forget about the Academy, Beau Robinson and Ben Corridas are rumored to have signed as well, I doubt both have but I suspect at least one of them has.
Then there is Gill, firstly he was to small and now he is to young, I don't personally think either are true, from what I've seen he seems mature enough to step up and with a full off-season I suspect he will be physical prepared as well. Undoubtedly Gill will be rested throughout 2011 by Link, it's a luxury he is afforded with a decent supply of alternative 7's to pick from.
If anything is true, it is that we are spending to much time debating this specific topic, the only way those discussion will be solved is at the completion of 2011 Super Rugby season.