Be Flexible

Your stature on the team is hard-won, but if the company needs a Chief Cook and Bottle Washer right now, you'd be wise to step up. Flexibility in role, in title, and in tasks is a big deal when layoff short lists are being written and reviewed. If you're the team's usability guru but the campaign has fallen victim to the need to stay afloat, be humble enough to write code and/or documentation if need be.