It's a domino effect- financial companies and other industries are freezing their pension plans.  Most of these firms will offer better 401k matches but soon pension plans will be forgotten.  

Specifically, as of January, the company will start matching 100 percent of the first 6 percent of annual contributions employees make to their 401(k), up from 50 percent currently. Also, employees who don't currently contribute will be automatically enrolled to save 3 percent of their pay, increasing at 1 percent a year to 6 percent of total pay, unless they opt out of the plan. Many companies have put similar features in place following changes to enrollment laws passed by Congress last year.

Boston.com provides details on State Street pension and 401k changes.