“What’s wrong with the Buffalo Bills?” Nothing, though it took a while in Baltimore. “What’s wrong with the Buffalo Bills?” Nothing a last-minute bunch of drama couldn’t fix. The Baltimore Ravens offense is easy to define … but difficult to stop. The Buffalo Bills offense is supposed to be difficult to define … and impossible to stop. But “impossible” occurred for a while again on Sunday in what would eventually become the Bills’ Week 4 win at Baltimore by a 23-20 score. QB Josh Allen and company stormed back from what had been a 20-3 first-half deficit, laboring to handle…