The Memphis Grizzlies got another extension decision to make on a 2019 rookie class member Two members of the Memphis Grizzlies 2019 rookie class have been taken care of this offseason. Ja Morant agreed to his inevitable max extension, with the possibility of it becoming a super-max deal with an All-NBA selection next season. Originally brought into the organization as a two-way, John Konchar continues his developmental arc here after a 3-year, $19M extension early last month. Now, Zach Kleiman has another extension decision to make on the other 2019 draft class member, Brandon Clarke. A decision probably won’t come…