The Josh Allen rollercoaster is up and running again for the new NFL season

The Bills quarterback produced his usual thrills: a galloping touchdown run, a near game-ending mistake and a brilliant throw.

Buffalo fans better hold on Having Josh Allen as your quarterback is a bit like owning a high-performance sports car with an odd mechanical flaw that can’t be repaired. Most of the results are amazing – perhaps unprecedented – but there are also times when you wonder if a safer ride would get you farther. In Buffalo’s 36-31 Sunday win over the Houston Texans, Bills fans saw all sides of the Allenmobile. The quarterback completed…