This is not a simple answer:
Where I work it is mandatory to put all reimbursable expenses on your corporate card so my advice would depened on specifics about your role and company.
For example what is the policy on the expense reimbursement - must it be on the corporate card or is that optional?
Do you travel for work and expect signficant expenses? For example when I go to a conference the room, airfaire, conference could add up to over $3,000.
If allowed do you have sufficient free credit on your cards to pay for travel and wait to be reimbursed?
If you are expected to have a corporate card will it look bad on you if you are declined or will there be a stupid cap? I have heard of Macy's employees getting a $50 limit so they had to pre-pay to use the card to get their corporate discount.
When you say withdraw from your 401K do you mean a loan or a hardship withdrawal? The later has penalties the former you miss the opportunity for your 401K to grow.
I would avoid a 401K hardship withdrawal (which is only allowed for certain things anyway) but a loan may or may not make sense?
Now before anyone has a cow think of it like this. Mathematically speaking paying off your highest interest rate cards first may make the most sense. If so then why do so many recommend the snowball method instead knocking out $35+ minimum payments for each account?
While not the most financially sound thing to do depending on your age and how close to retirement you are a 401K loan to pay off debt can greatly improve your scores and should not be automatically dismissed.
Also being on a Debt Management Plan can greatly impact your credit scores and you may not get approved for anything new including a corporate card while that is reporting on your credit.
YMMV.
