Sorry Jeff, misunderstood!
Just to run a sproc you can of course edit it to look like:
SET @Param1 = 'somevalue';
SET @SQLString = N'EXEC [db].dbo.
' + @Param1
EXECUTE sp_executesql @SQLString
But I dont think that will have the desired effect on how the plans are stored and utilised.
'Only he who wanders finds new paths'