In transition

I'm feeling hostile today because they are interviewing candidates for the position that supervises me. My previous supervisor was let go for a number of reasons and since Late November, I've been handling all of the aspects of her job that she left hanging. Because of this, and because of my two years of experience in this job, I applied for the position, only to be eliminated after the first round of interviews. I was told the reason is because I have TWO years of experience, and Human Resources is requiring that all candidates have THREE. One year. And now I feel even worse because I don't get a say in who my boss will be because I applied for the position.
I want my friend Sean, who works in our department, and who has also applied for the job, to get the position because he deserves it, because he and I work really well together, and because if he leaves he gets the job, he'll vacate his old position, which I am qualified to fill. I guess I'll just have to wait and see what happens.