This telehealth leader has a lot of work to do.Teladoc Health (TDOC -1.12%) has struggled to navigate a shifting landscape in the virtual care industry. At the time of writing, the stock is down a disastrous 57% this year amid large recurring financial losses and weak growth.That being said, a backdrop of extreme volatility with a deep reset of expectations can sometimes offer investors the opportunity to pick up shares in a beaten-down industry leader at an attractive price. Teladoc has the potential to tu ...