Siebel is trying to acquire it's way out of strategy decay. It's buying a hosted services provider, and a compensation tracking firm. Note to Siebel: you can't buy a strategy. If your resources and competences are eroding, build new ones strategically - don't just go on an acquisitions spree.
At the point of strategy decay, acquisitions usually are more trouble than they're worth - because of the coordination, integration, and compromise costs that go into making them work.