How did replacement refs do?

The replacement referees had some good and bad moments on Sunday. Al Messerschmidt/Getty Images

Adam Schefter answers reader questions in his mailbag twice a week. Got a query of your own? Submit it here.

Q: What are you hearing about the replacement refs? Do people think they've done a good job so far?

-- Dave (Nevada)

By and large, Dave, they did pretty well. They didn't have a great game in the San Francisco-Green Bay matchup, as the NFL's former head of officials, Mike Pereira tweeted Sunday, which quickly drew a rebuke from NFL spokesman Greg Aiello. But here's the thing, Dave. We really didn't notice or have to talk about the officials much, which is the surest sign that they were, at worst, competent. And keep this in mind, as some NFL executives pointed out in recent days: It's not as if the regular officials got every call correct. They made their fair share of mistakes, too, as coaches have been quick to point out. But all in all, the day was a "W" for the NFL.

Q: Adam, who was the most impressive player from Week 1? I thought RG3 was phenomenal for the Washington Redskins.

-- Martin (Maryland)

A: He was off the charts, Martin, better than I think even the Redskins even expected. Think about this: No player in NFL history ever had compiled more than 300 passing yards, at least two touchdown passes and no interceptions in his debut. Ever. Until Robert Griffin III did on Sunday. Man, was he impressive. And the most impressive veteran had to be Adrian Peterson. Who else could shred his knee on Christmas Eve and come back to plow over defenders and score touchdowns just a little more than eight months later? That is superhuman, which is the type of back Peterson is. He and RG3 were the Week 1 stars. And the best efforts from particular units came from San Francisco's and Tampa Bay's defense.

Q: How much worry should Philadelphia Eagles fans have after Week 1? I know they won, but they squeaked out a win against a Cleveland Browns team starting a rookie QB and RB.

-- Harry (Pennsylvania)

A: They won, Harry. On the road. And it was neither pretty nor impressive, but that really doesn't matter much. It was a "W," and there were a lot of teams that would have been happy to get one. Now, there are issues. I'm not sure about Philly's offensive line; Alex Henery looks shaky; and Michael Vick sometimes makes poor decisions. But I'll take the Eagles' talent, coaching staff and front office and take my chances. It's a long season, but it started out with a win.

Q: Adam, what was the most significant injury of Week 1? If Fred Jackson is out for the Buffalo Bills, that could really hurt them.

-- Patrick (New York)

That might be the most notable injury, Patrick. An MRI on Monday will determine the extent of the damage, but the initial feeling is a torn lateral collateral ligament. Without him, the Bills would need to lean heavily on C.J. Spiller, who looked very impressive and explosive Sunday. It looks as if the Cardinals also lost John Skelton for an extended period of time, but Kevin Kolb played well in relief. And don't forget there are two more games Monday night. Injuries always are a factor, and the NFL season is always something of a war of attrition.

Q: Everyone always overreacts to Week 1 results. It happens every year. Which team wasn't as bad (or good) as it looked on Sunday?

-- Greg (Oklahoma)

That's hard to say after one week, Greg. But the Eagles aren't as shaky as they looked, nor are the Carolina Panthers. But I think the San Francisco 49ers, New England Patriots and Houston Texans might be every bit as strong as they looked. Those might be football's three toughest teams.