I think the general rotation will be something like this as the roster is currently constructed
PG - Schroder 30, Smart 8, Pritchard 10
SG - Smart 22, Richardson 26
SF - Brown 34, Nesmith 14
PF - Tatum 35, Parker/G. Williams 13
C - Horford 24, Williams 24
Guys that will regularly play some depending on matchup - Dunn, Langford, Kanter