At this time last year, the Buffalo Bills were in a stalemate with star running back James Cook . He’d eventually get a new deal , as he was en route to his first career rushing title. But now that it’s a year later, it looks like the Bills got a steal for Cook’s deal. After the Jets recently extended Breece Hall, Cook’s $11.5 million average annual value (AAV) dropped out of the Top 10 of running back contracts . Now, it’s even lower, as another AFC East rival was paid handsomely in Dolphins’ star De’Von Achane. The fourth-year back’s extension has an AAV of $16 million, the third-highest in the league . His deal is now also the most in the NFL for any RB in terms of total value.…