The Knicks are in the market for point guard help. Isaiah Canaan of Murray State thinks he can fill the need. The Knicks like shooters, especially shooters from deep. Canaan feels he can supply that as well. With Carmelo Anthony terrorizing opponents, the Knicks favor guys whose passing can complement the All-Star’s ability. Canaan believes he can do that, too. One thing the powerful 6-foot guard who worked out for the Knicks yesterday does not lack, in any regard, is confidence. “I’m very confident. I’m a competitor,” said Canaan, a scoring point who averaged 22.4 points, 4.3 assists and shot .371 on 3-pointers as a senior. “I’m going to do what the coach asks me first. If I have to earn respect, I’m going to go out there and prove I belong in the NBA. I’m not going to back down. “Aspects of my game that really separate me [are] that I can shoot pretty good, create off the dribble and find the open man.” With Jason Kidd’s Monday retirement, the Knicks have a point guard “Help Wanted” sign hanging. Canaan is projected as a high-to-mid second round pick, although he — confidently, of course — projects himself in the first round. The Knicks pick 24. “He’s pretty good,” said an opposing executive. “He’s can shoot. He’s a combo guard, more of a point. And he’s strong.” All stuff Canaan probably could have told you. And Canaan, who has drawn comparisons to Blazers Rookie of the Year Damian Lillard (Weber State) because of the small school background, is fully aware the Knicks need a backup to Raymond Felton. So he welcomed the workout yesterday.