[Snocioncilm]

1. If nobody else applied for the position, perhaps there's a reason... However, it could just be that they like you and think you're a strong fit for the position (or want to keep you in the company). Do check around with your coworkers to make sure this isn't a shitty position, though.

2. Video interview: I haven't had this, but the standard rules should apply. Dress well, especially the top part (as you probably won't be seen below the waist), wear something with a lot of contrast so you show up more clearly, and make sure you speak loud enough and clear enough for the mike to pick you up (enunciate clearly).

3. Standard stuff: Make sure you have a strong understanding of the position you are applying to, be serious about it (don't imply you just tossed your hat in the ring for the heck of it), and keep eye contact and such. Since you're not sure of what the position entails ... ask around Also, wouldn't hurt to have participated in tournaments yourself so to be aware of how they comport themselves and what sort of things seem to come up. (Of course, if you can find a current coordinator to ask questions of, so much the better.)

Good luck