Not fielding your best team and losing on purpose are not the same thing. Many teams bat 11 on Saturday when clearly they would hit better with 9. You don't throw your number one pitcher every game and sometimes try moving people around. At the same time you don't tell your fielders to make errors on purpose or hitters to strike out without trying. I know people have done some things to get another inning in like having someone strike out with 1 minute left, but that is actually trying to win.