Steve Ballmer, Microsoft
Microsoft is under fire once again, and this time it's over slow Windows 8 adoption. After a steep drop in worldwide PC shipments in Q1, market research firm IDC put part of the blame on Microsoft's latest operating system, which the firm said had failed to spark a much-needed PC refresh. And, Microsoft partners are frustrated with the software giant's channel moves lately, balking at cumbersome Windows 8 training and voicing their displeasure with Microsoft's retail-only plan for Surface tablets. Many are putting the blame squarely at Ballmer's feet.