The Detroit Tigers went into the regular season hoping to contend for a World Series and advance further in the playoffs than they have the last two years. While there have been some flashes from the offense and most of the starting rotation has produced at a high level, so often the postseason sees teams with elite bullpens who can shut down games late emerge to win big. Detroit's unit has not been completely horrible, but it also has not been strong enough to rely on in October. With a 1.42 collective bullpen WHIP that ranks outside the top-20 in baseball and big names like Kenley Jansen and Will Vest struggling badly , there is some real concern here. As it turns out, a former fan favorite who has already had three stints in the Motor City has just become available in veteran left-hander Andrew Chafin, but would Scott Harris actually consider bringing him back?…