Implementing slicers to apply 'OR' criteria instead of 'AND'

Question

In my dataset, there is one record per investment and separate fields for 'Funding Team', 'Managing Team' and 'Supporting Team'.  For a given investment these fields may or may not have the same value.  The pivot table I've created has one record
per investment for the entire organization and there are 3 separate slicers, one each for Funding Team, Managing Team and Supporting Team.  I want users to be able to make selections that would filter the pivot to investments where their team is the Funding
Team OR the Managing Team OR the Supporting Team.  I understand that within a single slicer, selections are 'OR', but selections across multiple slicers are applied as 'AND' criteria.

Answer 1

You might start by reviewing these 2 related threads from a few months back.
These deal with creating a single slicer that checks if the value appears in 2 different fields.  Seems like you are just looking to add a third field which could just be added to the conditions with another OR ||.
The basic idea is to create a disconnected table for your team names that will be used as a slicer and then use the following structure as a condition for an IF() or the FILTER() parameter of a CALCULATE():
CONTAINS(
VALUES(TeamTable[TeamName]),
TeamTable[TeamName],
VALUES(InvestmentTable[FundingTeamName])
) ||
CONTAINS(
VALUES(TeamTable[TeamName]),
TeamTable[TeamName],
VALUES(InvestmentTable[ManagingTeamName])
) ||
CONTAINS(
VALUES(TeamTable[TeamName]),
TeamTable[TeamName],
VALUES(InvestmentTable[SupportingTeamName])
Both of these posts were related to different aspects of the same issue in getting this to work:
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/cd29a785-c2b5-4953-a7a2-07c423f44640/getting-a-slicer-that-contains-a-single-list-of-pms-and-pds?forum=sqlkjpowerpivotforexcel
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/ab2cbc32-fc69-4497-8a4d-59e8683bf52a/disconnected-table-slicer-values-are-not-being-visually-indicated-correctly?forum=sqlkjpowerpivotforexcel#dbded033-4d7f-47b2-b1ca-0e07b7673443