Not that it was ever really solved, but once more, it's rearing it's ugly head, especially with them going to (for now, at least), a '12 style rotation, whereby they have something of a duplicate for each starter coming off the bench, with the exception of backup small forward.
Simmons' shot has abandoned him and his confidence in it has, too. What's worse, opposing teams appear to be catching on that he should be completely disregarded when spotting up on the weak side. The Lakers had their weak side wings with two feet in the paint today.
Unfortunately, if his struggles persist, that means the inevitable return of Anderson to the rotation; who's obviously not the answer either. Also, having such a gaping hole puts more pressure on Ginobili to be consistent too, something he's incapable of being at this point.
As up and down as Ginobili is and despite their financial limitations, they can't go into next season with Simmons, Anderson and a rookie or minimum signing as the third and fourth wings. With so much of the focus on Dedmon and Mills, wing depth has flown under the radar, but it's a major issue. On top of soaking up backup minutes, they have no insurance if Leonard or Green miss an extended period and lack the flexibility to go small.