DETROIT >> To say it's indefensible goes without saying.You probably wouldn't get much of an argument from the Detroit Tigers because - well, recently they haven't defended much of anything very well.The offense has gone into another funk, and the pitching is beat up, but it's the lack of competent defense that might be the most worrisome for the Tigers, who fell another game back in the playoff race with Sunday's ugly, 8-1, three-error loss to the Seattle Mariners.