At most casinos next week, football fans will gather for “the big game.” And for the first time ever, Caesars Super Bowl parties will be hosted at 15 properties nationwide . The company will break out 16,000 Super Bowl shirts and hats, NFL wall decor and ice sculptures, wristbands, cookies and all sorts of gear featuring the New England Patriots and Los Angeles Rams logos. It’s all a result of Caesars’ surprising Jan. 3 announcement of a first-ever national casino agreement with the NFL. The multiyear agreement gives Caesars the right to use NFL marks and logos in casino promotions….