Move over Ezekiel Elliott, Jay Ajayi is the NFLs best running back.Ajayi tied a league record by surpassing 200 yards rushing for the second straight game, helping the Miami Dolphins win two in a row.Ajayi ran for 214 yards in a win over Buffalo after totaling 204 yards a week earlier against Pittsburgh. He joins O.J. Simpson, Earl Campbell and Ricky Williams as the only players to have consecutive 200-yard games.Now, the former fifth-round pick has to wait an extra week to break the record because Miami (3-4) has a bye.Elliott leads the league in rushing, helping Dallas (5-1) to first place in the NFC East. But the rookie hasnt even had a 150-yard game yet.Surely, hes no Ajayi.By the way, Ajayi had 304 career rushing yards before his outburst. He also did it against two of the leagues bottom-12 defenses against the run. Lets see how he does against the Jets on Nov. 6. New York is the fourth-ranked run defense in the league.Here are other overreactions following Week 7:OVERREACTION: The Vikings are the 2015 Falcons, who started 5-0 and finished 8-8.REALISTIC REACTION: Minnesota wasnt going 16-0. Besides, the Eagles also dominated the Steelers in Philadelphia and the Vikings could go 9-7 and still outdo Atlantas finish last year.---OVERREACTION: Ben Roethlisberger is the most valuable QB in the NFL. Without him, the Steelers lost 27-16 to Pittsburgh.REALISTIC REACTION: With Big Ben, Tom Brady and the Patriots still couldve won that game.---OVERREACTION: The Giants should make Landon Collins a running back. He showed more moves on a 44-yard interception return than any of New Yorks backs.REALISTIC REACTION: Theres a reason Collins is a safety.---OVERREACTION: Dont count the Chargers out in the AFC West. They beat the Falcons on the road after knocking off Denver.REALISTIC REACTION: Despite two good wins, San Diego (3-4) is still in last place.---OVERREACTION: The Pack is back. Aaron Rodgers led Green Bay to an easy win over Chicago.REALISTIC REACTION: Almost every team beats the Bears (1-6).---OVERREACTION: Andrew Luck will never lose to the Titans. Hes 10-0 against them.REALISTIC REACTION: If Marcus Mariota learns to protect the ball, Lucks dominance against Tennessee eventually will end.---OVERREACTION: Case Keenum should be benched after throwing four interceptions.REALISTIC REACTION: Not every pick is on the QB. Three of Keenums werent his fault.---OVERREACTION: The C