Oklahoma comes into the SEC Tournament without a ton to lose, but with plenty to gain. The top-seeded Sooners open the tournament against either LSU or Georgia at approximately 7 p.m. in Lexington, Ky. How important is the SEC Tournament to Oklahoma’s postseason fate? While the Sooners are “just” No. 6 in the RPI, Oklahoma’s run through the SEC, their offensive numbers and their recent pitching success figures to put them in position to at least be a top-three seed nationally. There are plenty of other SEC candidates for one of those top spots. Alabama and Texas figure to be the likely next teams up for top seeds. The Crimson Tide are No. 2 in the RPI (behind only Arkansas), have series wins over the Razorbacks and Longhorns this season plus two non-conference wins at Florida State on their resume. Texas, the defending national champions, slipped some late with series losses to Alabama, Oklahoma and Arkansas over the final month-plus of the regular season, plus a non-conference loss to Oklahoma State.…