Possible to switch credentials mid-playbook?

[Brantley West]

Hello,

Is there a way to instruct ansible to use a different username/password combinations for a tasks or plays within a playbook?  I see the remote_user variable, but do not see an accompanying remote_pass variable.  I need something like ansible_ssh_user and ansible_ssh_pass to be definable per-task or per-play.  The problem I'm trying to solve is with a distro that has a default username/password that I want to replace with a different username/password, and then continue executing roles/plays with the new username/password.  Thanks in advance!

-bw