LYNN – Jeff Waldron’s summer vacation will be about a week longer than he’d have liked, and he’s not sure he’ll welcome the extra time.”I go back to work in three weeks,” said Waldron, whose second year as manager of the North Shore Navigators ended too abruptly Friday night with a 7-0 loss to the Sanford Mainers. “And that’s fine with me. Idleness doesn’t suit me well. I’m looking forward to getting back to school, and also looking forward on starting to work on next year’s roster.”Waldron, who lives in Lynn, and who graduated from Classical (where he is still an assistant baseball coach) and Boston College, teaches at Masconomet, where Navs general manager Peter Delani is the assistant principal. He got as high as Triple-A ball while playing in the Arizona Diamondbacks organization, and he’s been at this long enough to be philosophical about defeats.”We got beat,” he said. “That’s all there is to it. “Their pitcher (Tripp Davis) pitched well, but we hit a lot of balls right at people. It was just one of those things.”After clobbering Sanford, 8-0, Wednesday to take a 1-0 series lead, the Navs went up to Sanford Thursday and were blanked, 6-0 – meaning that they were shut out for 18 straight innings.”They’re a good organization, just like we are,” said Waldron of Sanford. “Aaron (Izaryk, the team’s manager) and I have the same philosophy. We try to get as many players in the game, so that they’ll all be sharp. So it’s no wonder we’re always around at this stage of the season.”Last year, the Navigators had to win a tough first-round series against Sanford en route to their New England Collegiate Baseball League championship. This year, Sanford turned the tables.”It’s tough to win, let alone tough to repeat,” said Waldron. “Last year, we got a lot of good bounces on our way to winning that championship. This year, we didn’t. And sometimes, that’s the difference.”I think in the two games we lost, we hit at least 12 balls right on the screws, but they all went right at people.”A case in point came in the bottom of the sixth inning. By then, it was already 7-0 and hopes were fading. But the Navigators managed to load the bases with one out, and with No. 5 hitter Connor Mach at the plate.Mach couldn’t have hit the ball any harder, but he hit it right to second baseman Brett Molenhauer, who turned the easy double play.”I think between the two runs they scored in the top of the inning, and that, it took the starch right out of us,” Waldron said.Still, he said, “it was a great season. We had a good bunch of guys, even though we lost a lot of the ones that were on our roster originally, either to injury or other things.”But we had a good summer just the same,” he said.