I think the Deans decision is a financial one. He would be getting paid big $$$ and it would cost Pulver quite a bit to pay him out. Better to wait until the contract is done and hire someone new. It's not like people aren't going to go to the Lions games because of the coach.
I hope McKenzie isn't going to Scotland. I think Wayne Smith would be a much better option for them.
Jets, you may well be right, and I have speculated similarly elsewhere in GAGR threads. But such reason would still potentially yield up an almighty blunder. One or the many BIG reasons why: assuming Deans is not renewed, if no new Wallaby coach is picked until, say, December 2013, he can only meaningfully take over the Wallaby squad in about June 2014. This provides him with no more than 1.25 Test seasons to design and develop a Wallaby squad for RWC 2015 that commences in September 2015. Especially for a new coach with new methods, coaching team, selection thinking, etc, this is way less than an ideal lead-in period to a RWC, where IMO 2 full seasons of team oversight is the minimum best suited to optimising for RWC performance.
Hence, if Deans contract was to be extended as it was in early 2011, Deans' contract termination point, or formal contract review process, should have been no later then the immediate end of the BIL tour so that any new coach could have commenced as soon a practical thereafter. As Deans' performance faltered in 2009/10, the ARU re-designed all his prior KPIs to then obsess over the 'crucial development pathway to RWC 2011' that all this mediocrity was supposedly designed to presage.
When it came to Deans' 2011 contract renewal and the related thinking through carefully the 'crucial development pathway' to RWC 2015, all the considerations of key continuity and long preparation periods for the national coach that were deemed so essential in 2009/10 seem to have been entirely forgotten.