Barring disaster due to injury or just sheer ineptitude when playing, I would think and hope that this kid is our main backup wing player off the bench. 1, after Crowder he's pretty much our only pure small forward. 2, he's the #3 pick and somebody picked that high should be able to manage a rotational duty.
However, I will admit that I am a little nervous about it because if there's one weakness of Brad Stevens, it's that he takes a little too long to give certain guys minutes or doesn't give enough minutes period for certain players. And especially with these young guys, guys that are either a part of the future or meant to be trade chips, they need to develop...which means Brad needs to actually play them. And I'm not talking about just Brown, I'm also talking guys like RJ Hunter, Rozier, and Mickey getting minutes too.
It's better long term for this organization for them to play those guys over a guy like Jonas Jerebko.