Hi - You will not normally be able to access a resource attribute on the Team object unless:
a) You update the attribute using a workflow on the team object (not something that I would advise - keeping the data in sync is usually a challenge. Also, the update to the object will never be real time - Neither Resource nor Team are workflow enabled. So, you will need a scheduled job to keep the information in sync).
b) Consider how the information is being used. You may have to create a custom portlet/report that combines the team and resource properties.
c) There is a way to put a dynamically generated value on an object using a dynamic lookup. But, the method works on edit pages only. See - TIP : How To Put Any Dynamically Generated Value On A Clarity Object