ORCHARD PARK, N.Y. -- If all goes according to coach Rex Ryan's plan, the final resting place of the ineffective, turnover-prone and injury-riddled version of the Buffalo Bills' offense will be London's Wembley Stadium, where that EJ Manuel-led unit stumbled to a 34-31 loss two weeks ago.

About 3,500 miles away, at Ralph Wilson Stadium on Sunday, the Bills debuted the offense that Ryan had promised fans was coming -- and it made all the difference in Buffalo's 33-17 win over the Miami Dolphins.

Quarterback Tyrod Taylor? He's back. Karlos Williams? Yep, he's back, too. Sammy Watkins? He's back, and in a big way.

Now the Bills (4-4) just need to keep it all together.

"We think we have a lot of talent and unfortunately we had so many injuries that we haven’t necessarily seen that," Ryan said. "But today you got a chance to see a healthy Sammy Watkins out there. Healthy LeSean McCoy. Healthy Karlos Williams. All those type guys and they all contributed. And like I say, when we're healthy, we're gonna be pretty tough."

Rex Ryan celebrates a touchdown during the Bills' 33-17 rout of the Dolphins. Timothy T. Ludwig/USA TODAY Sports

Watkins' status for Sunday was touch-and-go because of an ankle injury that kept him out of practice as recently as Friday, but Watkins was certainly a "go" against the Dolphins -- and he was barely touched.

Taylor launched a 63-yard completion to Watkins in the second quarter that set the table for a Williams touchdown on the next play. After a penalty forced the Bills into a third-and-14 in the third quarter, Taylor dropped a 44-yard dime to Watkins in the end zone for the pull-away score.

Watkins finished with 168 of the Bills' 181 receiving yards, or 92.8 percent -- the highest percentage of a team's receiving yards in a single game since Qadry Ismail had 258 of the Baltimore Ravens' 268 receiving yards in 1999. Watkins, the receiver whom the Bills touted as a "generational talent," was a clear difference-maker in Sunday's game.

"He's a hell of a player. He's really God-gifted," McCoy said after the game. "He's like the prince of the team. I mean, we need him to win games, which showed today."

Added Ryan: "He knows the kind of player he is. All of us know it. Our fans know it. So you know what? He’s back, and like I say, [if] we keep him healthy, watch out."

McCoy has some talent of his own, and aside from a few productive outings against the Patriots (in Week 2) and Bengals (in Week 6) earlier this season, he hadn't been able to combine his abilities on the ground with Watkins' skills in the air -- until Sunday, when McCoy and Williams each ran for more than 100 yards.

This is the offense the Bills assembled when they traded up to select Watkins fourth overall last year and when they dealt for McCoy earlier this year. It took nine games to fit the pieces together into a cohesive, healthy group -- so how long will it last? McCoy wanted to finish Sunday's game but departed for the locker room in the fourth quarter because of a shoulder injury. He said he'll be "fine," but it's possible that he'll be limited in practice this week. And Watkins' ankle might not react well to a quick turnaround before Thursday's meeting with the New York Jets.

As important as the victory over the Dolphins was in getting the Bills back on track after an underwhelming 3-4 start, their next two games could define their season. A trip to MetLife Stadium will be followed 11 days later by a Monday Night Football matchup with the New England Patriots at Gillette Stadium.

If the Bills don't have Watkins and McCoy healthy for those games -- or they suffer injuries elsewhere -- their season could be back on the ropes.