This is where they were the year Jobs returned, remember: http://www.wired.com/images_blogs/gadgetlab/wired+cover.jpg
SanDisk went in the relative dumper following the memory glut in ~2009 but seems to have been recovering under Mehrotra for about a year now
And a great turn around (and around) story is Seagate, who tanked, went private around 2000, came out and soared mid-2000 and is sort of tanking again even under chairman Stephen Luczo's leadership
http://www.amazon.com/Elephants-Dance-Inside-Historic-Turnar...
"How Lou Gerstner Got IBM To Dance" http://www.forbes.com/2002/11/11/cx_ld_1112gerstner.html
Also, Michael Dell returning to his company has been a solid turn around in regards to profitability and improvement in product quality, both of which had languished under the former chief. It doesn't show in the stock valuation because of substantial PE compression, but Michael Dell has taken the company from losing money briefly and having some accounting scandals, to a solid level of profitability in the last few years.