The Pittsburg Pirates seem to have it all, a storied tradition and a loyal fan base- but they've been terrible for quite some time. In fact, In the 2010 season- they went 57-105. The pirates famously traded away just about any useable body they had on the roster in order to build up the team slowly through the draft. They were convinced that over time they could turn things around. And they did. They're back in the playoffs.
Tennessee can do the same thing but it's going to take some time. There are going to be near misses, and some hilltops along the way. We should see progress over the next few years, but let's not kid ourselves into thinking that this thing is going to get changed around all at once.