Florida State wide receiver Jalen Brown and a Seminoles staffer got into an argument on the sideline during Friday’s game against Duke. Teammates had to pull Brown away to focus on the upcoming drive, according to Brennan Sonnone. The incident occurred after a turnover – one of three committed by Florida State in as many plays in the first half. Brown was the intended receiver on what turned into a pick-six by Brock Glenn, which gave Duke a 7-3 lead with 1:38 to play in the first quarter. CLICK HERE to go to PrizePicks and use code ON3 to receive a guaranteed $50 once you play $5 in lineups! D…