Mike D’Antoni used the words “overachieve” and “question marks” several times in today’s 40-minute meeting with the media. But the more he talked, the more he sounded like he believed the Knicks have a shot to make the playoffs. D’Antoni’s contention is based mostly on the belief Danilo Gallinari, coming off back surgery, will be around a whole season. “He’s the best shooter I’ve ever seen,” D’Antoni gushed today.