Would Columbus get rid of Cuaron?

[Emily]

I just had a scary thought...  I'm one of those folks who thinks 
Cuaron is going to do amazing things with PoA.  What if (or, when) 
Cuaron does an outstanding job, and everyone says he made the best 
movie of the three, and maybe even gets a nod for Best Director, 
Columbus gets jealous?  I know the directorship (is that a word?) is 
up in the air right now for GoF, and there's certainly the 
possibility that Cuaron won't want to continue with GoF, but could 
Columbus get rid of him out of spite?  I don't mean to imply that I 
think Columbus is an evil man or anything <g>, but he's already said 
he would consider directing GoF.  Would he force out a better 
director because everyone thought Cuaron did a better job?  (I'm 
assuming that as a producer, he may have the power to do that.  
Please correct me if I'm wrong!)

I don't know anything about Columbus, or the film industry, but I 
leapt with joy when I watched "A Little Princess," knowing that 
Cuaron would add so much heart to PoA.  I'm also hoping that he'll 
stick around because the books will get more and more emotional, and 
Columbus' lackluster style doesn't convey that.  I just have this 
awful feeling that we've finally got a wonderful director, and he 
may not stick around for GoF.  It's one thing if that's his choice, 
but I'll be very irritated if he doesn't get to continue because he 
stepped on Columbus' toes.  (Does this even make sense?  I spent a 
lot of time out in the sun today... <g>)

Different topic: As to the uniforms, who cares if they changed?  
They look great, and no one said that the change was Cuaron's idea 
(maybe Rowling complained).

Emily, who is dying for a lot of changes in the films, and also to 
know when we're going to get our first pictures of Lupin and 
Black  ;-)