Yeah, that's a complete no brainer for me.
i like what Jonas brings, he's plays hard every night and is a nice 3+D guy who can also rebound well. But I don't believe losing him would have a significant negative impact on the team, and even if it did he can be replaced easily enough in today's league where stretch fours are so common.
Lee has little value to us right now as anything more than a trade chip to match contracts, so losing him doesn't hurt us much.
We already have four rookie prospects we've taken late in the draft (Young, Rozier, Hunter, Mickey) who we are struggling to find minutes for, so none of our picks have much value to us unless they are top 12 (or at least top 15). Right now that likely means that any pick that isn't a Broolyn pick probably has more value to the opposing team than they do to us.
Right now we are the 4th seed in the East, and tied with Atlanta for the 3rd seed. With Toronto 5.5 games ahead even the 2nd seed is, at a stretch, within reach.
It wouldn't take much of an upgrade to this roster for us to really solidify a top 3 seed in the playoffs, and finishing top 3 in the East would IMHO dramatically help out potential as a free agent suitor the next year or two. I think adding Howard, even with the risk of it being a rental, gives us a very good chance at achieving that.
So giving up Jerebko, Lee and two firsts (that we'd likely not use anyway) is IMHO an absolute no brainer to me. Howard seems to have matured a lot since moving to Houston, and even despite the age/health concerns he is still easily good enough to be the best true center this team has had since Al Jefferson.
We're talking about a guy who is putting up 14 points, 12 rebounds and 1.5 blocks in 32 minutes with an offensive efficiency (1.67 points per FGA) that is absolutely off the charts.
He only has to take 8 FGA per game to get his 14 points, which makes him an absolutely perfect compliment alongside a guy like Isaiah Thomas...and his ability to score (and defend) in the P&R is invaluable.
If Dwight can stay healthy come playoff time, then he makes this team a serious contender in the East. We put up a good fight against Toronto right now, but we are over matched against Cleveland. With Dwight it makes us a much harder matchup for the Raptors, and it allows is to very seriously go toe to toe with the Cavs.
More importantly, there's really noting to lose. If Dwight accepts his player option, then having him and Thomas on the team is a solid foundation that will likely make the team a more appealing destination for free agents.
If he declines the option then he becomes a huge expiring contract, and the only thing we really loose is Jerebko since Lee's not coming back anyway, and there is about zero chance of those picks being used to bring in a player who has a significant future here.
With Thomas, and Dwight on this team, we will be getting a lot of opposing teams in foul trouble.