CREATE TABLE table_38363 ("Season" TEXT, "Player" TEXT, "Position" TEXT, "Nationality" TEXT, "Team" TEXT)

What Position does the Team of KR and the Player of Marcus Walker have listed?
SELECT "Position" FROM table_38363 WHERE "Team" = 'kr' AND "Player" = 'marcus walker'
SELECT "Position" FROM "table_38363" WHERE "Player" = 'marcus walker' AND "Team" = 'kr'