Day1, SLC-Jackson Hole Day2, Grand Teton NP, stay in YS NP Day3, YS NP Day4, YS NP Day5, YS NP and drive to Glacier NP in late afternoon, stay on the way Day6, Glacier NP Day7, Drive back to SLC
If you may have extra one or two open days, that would be better to smooth your itinerary.
