Ines tends to get more quality minutes, in earlier if not longer total minutes than Amari. Right now, already, she is making a contribution in relief time that is likely to continue and increase somewhat if she ups her game a bit. Also she has a longer leash than Amari who, when she does get early moments, has pretty much a zero-length leash.
I think Amari's role could change drastically because the team's need for what she as to offer is so leveraged. If the lightbulb ever did go on, and Geno would be the first to notice that, Amari would be playing 12+ minutes per game instantly and regularly. OTOH Ines playing at her peak just doesn't fill in as much to what is needed; doesn't, for example, fill in much of the gap left by Aubrey's absence.