Horford obviously isn't going to play like this every game for the next couple of weeks, but I do think the rest of the production from the other guys is sustainable and that the Sixers aren't just going to go into the tank like they have in years past without Embiid. Especially if they get a bit more from Harris. This might actually be a time for Simmons to live up to his potential as the team is actually a pretty good fit for him overall with Horford, Scott, Richardson, and Harris. Not perfectly tailor made for Simmons, but not bad either. They have solid shooting and defending around Simmons and no one that likes to operate in the paint. This is the time for Brown to show his mettle as a coach. If he can't get the most out of Simmons over the next couple of weeks it may never happen for Brown in Philly.
But this was a bad loss for Boston all the way around. You have to beat the Sixers without Embiid. And I need more Kanter. He is clearly a vastly superior player to Theis. Kanter needs more minutes.