Before joining Wilco, he was struggling financially in part because of the improvisational avant garde music he played (and still plays).
In addition to Wilco (The Album), Cline also recorded Coward under his own name, finished recording another album with the Nels Cline Singers and contributed to several other projects in 2009 alone. He’s ardently keeping up with is own pace.
See him play with Jeff Tweedy and the whole band at the Aronoff. The Heartless Bastards are opening. Read Ryan Mclendon's interview with Cline here.