Whitney Tilson’s email to investors discussing how to spot a successful turnaround. Spotting A Successful TurnaroundNot all declining businesses are “value traps”… Companies stuck in an extended decline often make the smartest, best-performing value investments. The difference is that these companies successfully stabilize their business and then start to grow again. One form of a turnaround is identifying a company in a sector that is getting crushed. Take retailers, for example… While Home Depot (NYSE:HD), Walmart (NYSE:WMT), Costco (NASDAQ:COST), and a handful of others have figured out how…