Brian Polian spent the first day of his new job as Nevada Wolf Pack head football coach in much the same way he spent his youth growing up in New York.Fighting cold temperatures and dodging snowflakes.“Everybody has been coming up to me and apologizing for the weather,” said Polian, who was approved by the Nevada Board of Regents in Las Vegas Friday morning to become the 26th head coach in the history of the Nevada Wolf Pack football program. “I just told them, ‘I’m from Buffalo. This is great.’”The 38-year-old son of former NFL executive Bill Polian comes to Nevada …