Buck Showalter has 1,551 managerial wins — 24th all-time in MLB — and claims three manager of the year awards. What the former Mississippi State star doesn’t have is a World Series ring. He might get a chance – a good chance, actually — to pick one up in 2020. Showalter has interviewed for the Houston Astros job and would appear to be one of the top candidates to replace A.J. Hinch, fired this week in the wake of the sign-stealing scandal. The Astros, 2017 world champs and 2019 American League champs, still have a loaded lineup and rate as one of the early favorites to win the 2020 Series. Showalter, 63, has managed four different teams and had success at each stop. He took three of the four to the postseason, making five trips all told in 20 years. His 2014 Baltimore club reached the AL Championship Series, falling to Kansas City. Showalter is the second-winningest manager in Orioles history – behind only Earl Weaver – but his nine-year tenure in Baltimore ended with a crash in 2018; he was fired after a gutted club finished 47-115. … John Gibbons, the former Jackson Mets catcher and ex-Toronto Blue Jays manager, is also a candidate for the Astros job. He has a 793-789 career record over 11 seasons, the last in 2018.