Henderson may be hurt, but if Portland's primary goal is to win as many games as possible (it probably isn't) then the former Hornets starter should assume the same role on his new team once he's healthy enough for heavy minutes.
Henderson is a better defender than McCollum, and the Trail Blazers can't let teams expose Lillard—who won't have the energy to play both sides of the ball every night—on the other end.
So how will these position battles shake out? They raged on during Day 2 of camp on Wednesday — and likely will continue all month — but favorites are emerging. McCollum seemingly has distanced himself in the race for starting shooting guard, in part because his chief competition, Gerald Henderson, remains sidelined after offseason hip surgery, but also because the franchise is heavily invested in him and he seems poised for a breakout season.