Hello, dear viewer,
1. It has been blowing gala all/over/across the afternoon.
Do you accept all 3 of them? Are there any nuances between them?

2. A national coach should work out ways to get our players overcome it.
I'm a little bit doubtful of the underlined. Is it grammatical?
If not, how should I put it right?

Thank you; have a nice day ahead.