CREATE TABLE table_2819 ("Month" CLOB, "Week" FLOAT, "Overall" CLOB, "Offensive" CLOB, "Defensive" CLOB, "Transition" CLOB, "Rookie" CLOB)

Name the rookie for ryan powell
SELECT "Rookie" FROM table_2819 WHERE "Offensive" = 'Ryan Powell'
SELECT "Rookie" FROM "table_2819" WHERE "Offensive" = 'Ryan Powell'