While Wrigley Field is embarking on a $375 million renovation of Wrigley Field, the team’s memorabilia group, Cubs Authentics, has decided to start selling game-used and other memorabilia to benefit charitable purposes instead of its own budget line. And with any luck and with great anticipation, the team will begin creating memories, and hence memorabilia, with its season-opening series with rival St. Louis. Other inventory will come from such spring training items as locker room nameplates and game-used hats. With a host of young talent, collectors will be keeping close attention to Cubs gear. A few seasons ago, the jersey worn by Anthony Rizzo when he hit is first home run went for $4,100; and an on-deck circle used during a 2013 game sold for $2,100.