For decades, craft brewers carved out their niche by separating themselves from the likes of Coors and Anheuser-Busch with bigger, bolder and more experimental recipes that pushed the boundaries of beer. But over the years, competition has continually increased while sales have largely flattened, leading several Colorado beverage makers to embrace the motto, “If you can’t beat ’em, join ‘em.” In the last year and a half, Knotted Root Brewing Co., Tivoli Brewing Co.