I don't think that the team is in any way adopting win-now approach. If anything, they are not doing enough to bring in players, and pushing an "average" amount of cap money into the future.
The team is spending less cash than almost anyone else, precisely because of the low amount of bonuses.
As for Revis, we signed him for a 1-year contract instead of franchising our own free agent for about the same money. In a win-now approach, the team would have signed a $12M-$15M long-term contract with a large bonus, pushing money to the future.
There are lots of ways to have brought in another couple of $10M a year players. The team chose not to do so. The team chose NOT to have a win-now approach.
I find it curious that many think that Belichick is adopting a win-now approach when the truth is that Belichick has been overly conservative.