Did you have Carlos Gomez in the pool? Did you have him as the guy from the Johan Santana trade who was going to have the most staying power, the most impact? Because here is the Brewers center fielder five weeks into the season, leading the NL in hitting and pretty much playing as well — all around — as anybody in the game. The others from the February 2008 mega-deal? Well, you know what has happened to Santana, out for the season after a second shoulder surgery, his six-year, $137.5 million contract set to expire while he tries to recuperate and see if he can ever pitch again. Kevin Mulvey? He already has retired. Deolis Guerra? The Mets almost didn’t do the February 2008 swap because they so badly did not want to include the high-ceiling A-ball right-hander. He has never pitched in the majors, was taken off the 40-man roster last offseason, re-signed with the Twins and developed a circulation problem near his shoulder that required surgery. He is now trying to rehab to pitch in the minors around midseason. Philip Humber? He had an out-of-nowhere perfect game on April 21, 2012, and has pretty much been the worst pitcher in the majors since — 4-12 with a 7.79 ERA, including 0-7, 8.82 this year for the Astros. And Gomez? He is hitting .368 — 20 points higher than anyone else in the NL — with a 1.059 OPS, six home runs and seven steals. No one expects him to maintain that kind of average. But Gomez is 27, in his prime and has made the kind of at-plate upgrades that moved five personnel men I spoke with to offer a consensus that .270-or-better and 20-plus homers should now be his norm for a while. As one NL executive said: “We still need to see if he can get on base over a large sample because he doesn’t walk much. But he is a dynamic player — great defense and baserunning, and he brings energy everyday. If his hitting levels off, he still is incredibly valuable.”