A formula one world championship depends on many factors, and sometimes those factors are out of someone's control to influence success. 2005 neither Ross Brawn, Michael Schumacher, or anyone at Ferrari, could do anything, once the season started, to change their fortunes.
Sometimes people forget just how rare Ferrari's success this decade has been compared to f1 history's past, how often does winning 5 titles in a row happen.... And why didn't Brawn and Michael win a title in 96/97/98/99, and why did Benetton suffer so badly in 1996 without Michael? So many factors.
If the regulations regarding this season's cars in 2009 were cleared up, Ferrari/BMW, Mclaren would be much closer to Brawn GP or even taking wins from them, it's that simple, Brawn GP does a good job, but sometimes a season's success is about which team interprets the rules the wrong way, it happens, don't make Schumacher god or Brawn the brightest brain who ever lived in our times, it's about some guys in the design department making a mistake because their human.
Ferrari, you had MS-probabley one of the greatest ever
Jean Todt-probabley the greatest team boss, the man worked long hours, don't forget him,
Brawn-very brainy, but remember, he did strategies at times he knew would work only with Michael, it's called teamwork people
Mario Martellle, the engine guy, IS ROSS BRAWN A ENGINE SPECILIST? Nope, but the ferrari engines got better as the years went by, and the engines were more important back then, rather then now as engines are freezed and boring. Schumacher was even known to offer ideas to help influence reliability and efficiency of the engines, he's a driver yeah, but he wasn't a complete idiot, he's very technical, it all addes up to success, he spent the winter in 2006 making sure ferrari were in the hunt for wins rather then points like 2005. Schumacher was offered the role of team boss of Ferrari, declined it, Ferrari don't offer any driver a role like this, Michael was quite smart. It was a dream team, we'll likely never quite see the same way again.
Comparing MS and Brawn to the success were talking about without actually respecting all factors that contribute to success, and that's alot of factors, is a insult to both parties professional careers, to actually sit down and write down all the factors that helped influence wins and success would make a pretty decent length book, nothing will do justice in this thread to fully appreciate what these men did and didn't do, I've only scratched the surface of the moon with this post, to do a thread like this, you need to respect the amount of detail involved, and if you want to do that, it might of been better to pick up books on ferrari and schumacher, there are loads out there, and clearly some people don't understand the efforts and ideas that go behind the scenes to win gps, and more over, the success enjoyed by ferrari this decade is a whole different matter and animal, not even I am bold enough to attempt to explain it, because I know it will take too long, and why bother when you have books and magazines out there that have covered this already. But if some want to create a different f1 history in their heads and get approval of a small minority and believe what is written in this forum reflects true f1 history, and it wouldn't be the first time in this forum, it happens all the time, then you can't stop this, if this forum reflected truth, f1 would have about 87675 different time lines, one were Senna is still alive clashing with Schumacher, one where Schumacher won GPs and showed no special driver skills, because he was a average driver and Brawn just needed to fuel him for 3 laps longer every gp to make him win, because it's that easy, and the other teams are so stupid to not fuel their drivers the same fuel for the race, yet Brawn and Schumacher kept getting away with it!!

This is what Schumacher is about,
nursing shot tyres at Imola 2006, everyone is expecting Alonso to come out in front right? What happened, Schumacher pulled off possiby one of his best set of inlaps on show for the win at he right time, gets out in front of Alonso, and Pat Symonds, the rival to Ferrari, even comments after the race, "Michael's inlaps were fantastic", and his outlap was too. You can say alot about Michael, but Imola 2006 was a good example, Ferrari hadn't won a gp in ages, and Renault and ALonso were applying pressure, at a time of vunerability where Michael was having to work hard for his first win in the season, and clearly Ferrari was having to work harder to get the best out of their tyres compared to michelin this phase, he delivered, not bad at all for the man retiring at the end of the season. Michael was the best in the pitstop sprint era of f1, it just happened to help him achieve the strategies Brawn knew he could pull off, and that is because Michael was a very special driver, Brawn knew that, ocmbine that with all the other talents at Ferrari, you have dream team. Simple.
End of story.
With the passage of time, people forget races or perhaps they didn't exactly know what they were seeing the first time, or didn't catch the details or observe how lucky they were to watch certain drivers and teams accomplish what they did, if they didn't then, it's hard job to educate them now, but it can't hurt to try, never know who's reading:)