Pirates mailbag: When will we see Konnor Griffin in the big leagues? Potential trade chips?

In his weekly mailbag podcast, Post-Gazette Pirates insider Noah Hiles answers reader questions. Among them: When can fans expect to see top prospect Konnor Griffin crack the major league roster? Is GM Ben Cherington focused on adding hitting at the trade deadline, and what could a star pitcher like Mitch Keller net them in return? Is it safe to assume Cherington will be back next year considering he's manning this trade deadline for owner Bob Nutting? Is it a certainty Andrew Heaney gets traded considering Johan Oviedo is making his way back from injury and Bubba Chandler and Hunter Barco are waiting in Triple-A? Where is Dauri Moreta? And why has the Pirates defense been so much better since Don Kelly took over as manager from Derek Shelton? Noah answers those questions and more. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.