Grapefruit and Cactus League games start Friday, and Mississippians Corey Dickerson, Lance Lynn, Seth Smith and Tyler Moore, among others, don’t yet have a team to play for. Zack Cozart, Jarrod Dyson, Alex Presley and T.J. House are suiting up for new teams. Hunter Renfroe may soon be doing that, too. Brian Dozier is finally in camp after a detour to have a kidney stone removed. Austin Riley, Cody Carroll and Dakota Hudson are in big league camp as non-roster invitees for the first time. Mickey Callaway is now a manager, and Ron Gardenhire, the old Jackson Met and ex-Minnesota skipper, is back in the saddle. So, yeah, there’s a lot of interesting stuff to keep tabs on. Start with Renfroe, the former Mississippi State standout who hit 26 homers as a rookie for San Diego last year but may now be squeezed out of a roster spot. The Padres’ signing of Eric Hosmer and shifting of Wil Myers to right field has fueled rumors that Renfroe will be traded. “We’re all chess pieces in a huge game here – that’s the way you look at it,” Renfroe told mlb.com. … Dyson, the ex-Southwest Mississippi Community College star, signed a two-year, $7.5M deal with Arizona earlier this week. A good defensive outfielder, Dyson, 33, had a strong offensive season with Seattle in 2017, batting. 251 with 56 runs and 28 steals in 111 games. He has 204 career steals over eight seasons. … Ole Miss product Presley signed a minor league deal with Baltimore, which had been seeking a lefty-hitting outfielder. Presley, 32, hit .314 in 71 games last year with Detroit, the fifth different MLB club he has played for over eight seasons. … Dozier, the former Southern Miss standout, reportedly won’t play in Minnesota’s games on Friday and Saturday as he eases into the spring routine. A pending free agent after this season, he batted .271 with 34 homers last year and says he wants to remain a Twin. Stay tuned. … UM alum Bobby Wahl is in Oakland’s camp as a non-roster pitcher this year, trying to bounce back from a shoulder injury that required surgery and cost him his spot on the A’s 40-man roster. Wahl, who pitched just 7 2/3 innings as a rookie in 2017, used to throw 100 mph. Can he get there again? “The way the ball’s coming out, it feels easy,” he said last week in an mlb.com article. “So far, this is the best I’ve felt throwing a baseball in a long time.” … Tim Anderson, the former East Central CC star who had a tough year with the Chicago White Sox in 2017, said he feels refreshed this spring. “Getting away from it definitely helped me and kind of gave me some breathing room,” he told mlb.com. “I’m hungry and excited about this season coming up.” Anderson lost a close friend to a shooting and scuffled at times on the field, batting .257 with 28 errors at shortstop. … This should be a fun spring for Marcus Thames, another former East Central CC standout. Thames, recently named hitting coach of the New York Yankees, gets to work with Aaron Judge, Giancarlo Stanton, Gary Sanchez, Greg Bird, Didi Gregorius, et al., an array of sluggers that some expect to threaten the MLB home run record. Once the games begin to count, there might be a little pressure there for Thames.