He's certainly tailed off, but still an under-30 player with a career 139 OPS+. He'll probably get hot again, just like Harper will. If money was no object I'd just sign him as well as Schwarbs. If it was to replace Nick, even better. They could also bring back Bader. But the lack of true offensive RHB threat remains, and there's not much in free agency either.
The more extensive call-ups were nice but with the way teams run their bullpens and 40-man rosters now there really isn't anyone to bring up, at least not for the Phillies. Crawford and Painter still aren't even on the 40. They need Stubbs in LV. It would just be Rojas, Kemp, Stevenson and a few fungible pitchers.