Mailbag: Kristaps Porzingis plan, Boston Celtics next steps, Al Horford legacy

We open up the mailbag to look at how the Celtics will cover for a recovering Kristaps Porzingis, including Jayson Tatum at the 5, and whether Porzingis or someone else will be the first domino to fall whenever the team does get too expensive. John Karalis of Boston Sports Journal answers those questions as well as Al Horford's legacy (and a beef with Paul Pierce?), chances that summer guys crack the rotation, an NBA question about the Denver Nuggets, and some historical Celtics questions. That includes a unique all-time team. Support Us By Supporting Our Sponsors!eBay MotorsFrom brakes to exhaust kits and beyond, eBay Motors has over 122 million parts to keep your ride-or-die alive. With all the parts you need at the prices you want, it’s easy to bring home that big win. Keep your ride-or-die alive at EbayMotors.com. Eligible items only. Exclusions apply. eBay Guaranteed Fit only available to US customers.GametimeDownload the Gametime app, create an account, and use code LOCKEDON for $20 off your first purchase. Terms apply.FanDuelFanDuel, America’s Number One Sportsbook. As playoffs wind down, the sports stop sporting like we want them to. But this summer, FanDuel is hooking up ALL CUSTOMERS with a boost or a bonus, DAILY! That’s right, there’s something for everyone, every day, all summer long! Visit FANDUEL.COM and add a big win to your summer bucket list!FANDUEL DISCLAIMER: 21+ in select states. First online real money wager only. Bonus issued as nonwithdrawable free bets that expires in 14 days. Restrictions apply. See terms at sportsbook.fanduel.com. Gambling Problem? Call 1-800-GAMBLER or visit FanDuel.com/RG (CO, IA, MD, MI, NJ, PA, IL, VA, WV), 1-800-NEXT-STEP or text NEXTSTEP to 53342 (AZ), 1-888-789-7777 or visit ccpg.org/chat (CT), 1-800-9-WITH-IT (IN), 1-800-522-4700 (WY, KS) or visit ksgamblinghelp.com (KS), 1-877-770-STOP (LA), 1-877-8-HOPENY or text HOPENY (467369) (NY), TN REDLINE 1-800-889-9789 (TN)