How would Anderson's career have gone if he was Australian.
He'd have gotten a run some time after McGrath retired, probably around 2010. He would have done ok but been dropped for the exciting (and faster) talents coming through - Pattinson, Cummins, Starc, Hazelwood etc... He would have been a solid domestic performer but would have been fighting faster bowlers for a spot.
Even if he was a regular instead of say Hilfenhaus from 2010-2012, he would have been pushed out by Harris, Johnson and Siddle as they became fit/good. Lehmann would have taken over the team at some point and dropped him for being too slow.
Over the last few years he'd have gotten a few games here and there, much like Bird but would have likely gotten most of his games on flat MCG wickets or in Asian dust bowls.
He likely would have been dug up for this Ashes tour and have been fighting Siddle for a place but sent home because Siddle is a management favourite.
He'd have ended up retiring with 150-200 wickets at 28-30 and nobody would think of him much again.
Thankfully he's got to play for England who gave him a massive run when he was rubbish and had repaid the favour from about 2010 on, particularity in home conditions but overseas as well for the last 5 years or so.
See the Australian selection policies churn through fast bowlers very quickly. Australia doesn't really give bowlers long periods in the side while being rubbish unless they're tearaways (ala Brett Lee).