The Seahawks will have a better idea of how long receiver Percy Harvin will be sidelined after he has surgery on his ailing hip Thursday in New York. The Seahawks receivers who remain standing though say the condition of their team hasn’t changed. They had high hopes for this season with Harvin and they continue to have high hopes now that he will be gone for at least two months and possibly three or four. “Whether Percy is on the field or not we’re going to focus on what we have and move forward’’ said receiver Doug Baldwin. “… We’ll be happy when Percy gets back. But we have guys who are more than capable of filling in for him.’’ Coach Pete Carroll echoed a similar theme in comments made to the NFL Network (he was not made available to local reporters) saying the team’s offense will not change. “It really doesn’t’’ he said. “We said from the start we just want to put him in the lineup and be one of the guys out there playing and add him in. So we really haven’t changed anything. He’s a fantastic football player and we were just going to add him into the mix.’’ In fact while the news of Harvin’s injury ignited much gnashing of teeth among the team’s fan base others were quick to point out all 11 starters return from the offense that finished last year as one of the best in the NFL. Over the last 10 games of the season including playoffs Seattle averaged 32.4 points a game including 150 in a three-game span late in the season. “We think that we have everything we need to succeed and we are going to do that’’ said receiver Golden Tate. It is Tate and Baldwin who will be expected to carry more of the load without Harvin around. Tate as primarily an outside receiver doesn’t play the exact spot as Harvin who was slated to play inside. But their two responsibilities were expected to overlap quite a bit. Tate acknowledged in the spring that his first thought when the team acquired Harvin was to wonder how it would impact his opportunities after he finished last season with a career-high 45 catches for 688 yards — especially since he is entering the last year of his contract.