Dynamic Title with Values from Multiple Slicers

Hi all,

I have a table with categories scattered across four columns (branch, digital, email, cbcc) and they all have the same yes/no values e.g., "Branch" or "Not Branch". I'm allowing users to select only the "yes" values as I'm filtering out the "no" values for all columns in each of the four slicers below:

I want to have a dynamic title that can only show selected values, for instance, looking at the above image: "12 Months Rolling Forecast - Digital, CBCC Outbound",  and this title should change when 1, 2, 3, or all 4 values are selected. If no values values are selected I want to show "12 Months Rolling Forecast - Overall". 

This is what I have so far but I'm getting nowhere:

Forecast Title = 

var _branch = ISFILTERED ( Leads_summary_db2[Centrel_opp_fc] )
var _digital = ISFILTERED ( Leads_summary_db2[Digital_fc] )
var _email = ISFILTERED( Leads_summary_db2[Email_fc] )
var _cbcc = ISFILTERED( Leads_summary_db2[CCC_outbound_fc] )

return

  "12 Months Rolling Forecast - " &
   SWITCH( TRUE() , 
      AND ( _branch , NOT ( _digital ) ) , "Branch",
      AND ( _digital , NOT ( _branch ) ) , "Digital",
      AND ( _email , NOT ( _branch ) ) , "Email",
      AND ( _cbcc , NOT ( _branch ) ) , "CBCC Outbound",
      AND ( _digital = TRUE , _branch = TRUE ) , "Branch, Digital" ,
      AND ( _email = TRUE , _branch = TRUE ) , "Branch, Email" ,
      AND ( _cbcc = TRUE , _branch = TRUE ) , "Branch, CBCC Outbound" ,
      "Overall"
   )

Thanks so much in advance.