Run 3 Dynamic Selects From Stored Proc

I am trying to run 3 dynamic selects from stored proc, really only
the table name is dynamic.. Anway I'm kinda lost on how I can
accomplish this.. this is what I have but it only returns the first
result.. that being basic

CREATE PROCEDURE email_complexity

@TableName VarChar(100)

AS
Declare @SQL VarChar(1000)
Declare @SQL1 VarChar(1000)

Set nocount on

SELECT @SQL = 'SELECT Count(complexity) AS basic FROM '
SELECT @SQL = @SQL + @TableName
SELECT @SQL = @SQL + ' WHERE len(complexity) = 5'

Exec ( @SQL)

SELECT @SQL1 = 'SELECT Count(complexity) AS moderate FROM '
SELECT @SQL1 = @SQL1 + @TableName
SELECT @SQL1 = @SQL1 + ' WHERE len(complexity) = 8'

Exec ( @SQL1)


Return

Is there a better way of doing this??

tia

Dave