Sox Sweep Away Astros 6-1

Can things go any better than April of 2013 for the Boston Red Sox? A team picked to finish near or at the bottom of the AL East is now an MLB best 18-7. John Lackey returned from the DL to pitch 6 quality innings of 1-run ball. Sounds like a broken record, but Papi keeps driving in Daniel Nava who has flourished in the #2 spot since Shane Victorino went down with a sore back. It's very hard to sweep any team, even the Houston Astros, in a 4-game set. But the Sox did it. Even Daniel Bard is getting some time on the big league mound without throwing at batters' heads. My question is how long can the Sox continue at this pace. Toronto & Texas will be tough opponents this week, especially Texas since the starters will be Doubront, Lackey & then Lester for that series.