As much as I would hate to see either of Hayward/Favors in a Lakers uniform, I would do that trade. While I don't blame people for being reluctant to extend this rebuild any longer, the team currently appears to be on track to become playoff regulars but not legitimate championship contenders.
As a small market team that is unable to attract high-end FA's, with a roster that is currently too talented to end up with a top draft pick, this type of trade is likely our best shot at acquiring that necessary superstar. Even if Russell & Ingram/Simmons are unlikely to ever develop in top 10 players, this deal would likely give us a high pick in a supposedly loaded draft class as well.
A core of Exum, Russell, Burks, Hood, Ingram/Simmons, Lyles, Gobert, #12, & a top 5 draft pick in 2017 is young, cheap, controllable, & extremely talented. While it's certainly a risk, I like the chances of competing for a title with that roster much more than I do with our current team. Especially when you factor in the potential of losing Hayward next year & Favors the following year.
I want to see this team return to it's winning ways as soon as possible, but if a few more losing seasons is the difference between making the playoffs & competing for a championship, I'll gladly wait for as long as necessary.