Robert Kraft has described the New England Patriots' free-agent binge as strategic.

"It's like investing in the stock market," Kraft said. "You take advantage of corrections and inefficiencies in the market when you can, and that's what we did here. We'll see. Nothing is guaranteed, and I'm very cognizant of that. But we're not in the business to be in business. We're in this business to win."

Kraft purchased the Patriots in 1994 for $172 million. In signing 19 free agents, some of whom played on the Patriots last year, he doled out about $162.5 million in guaranteed money over the last week.

The owner said: "In my 27 years as owner, I've never had to come up with so much capital before."