The Texas Rangers entered May a game under .500 but with the top of the AL West well within reach. They also opened the month with a six-game road trip to Detroit and New York. This season, the Rangers have been much better on the road than at home offensively. There are plenty of reasons why the Rangers are where they are. There are six data points that show why the Rangers are already at a pivot point of their season — three on the hitting side and three on the pitching side. On-Base Percentage Texas Rangers right fielder Brandon Nimmo. | Kevin Jairaj-Imagn Images This was an area the Rangers emphasized in the offseason. They acquired players to improve it, and they worked with current players to improve it. Last year, Texas had an OBP of .302. Through April, Texas has an on-base percentage of .315. For those interested, the Rangers had an OBP of .289 at the end of April. So, the lineup has shown definite improvement, even if it has struggled to put runs on the board. And that has been a struggle.…