The skinny: concludes that trading with Utah is the only realistic possibility for trading Gasol. It considers Millsap, Marvin & Raja for Gasol. (I don't know why it doesn't additionally consider Mo rather than Marvin.) It concludes Utah not likely to do the trade, as Jazz would have a new logjam of bigs and in any case would rather have Al around than Pau to mentor Favors and Kanter.
My thoughts, as someone who's advocated for pursuing Gasol in the past: Gasol for Millsap, Mo & Bell would be very interesting to me. But we'd have to be able to flip Al for a good, young PG, and I doubt that's possible. Also injury unknowns with Favors & Gasol scare me right now.