CAMDEN — Sometime toward the end of October, 13 people will climb into 76ers uniforms to begin again what has come to seem impossible. There will be new players and familiar ones, tougher players and some of the non-contact variety, players hungry to complete an ongoing project and others anxious to join the effort as it nears, one way or another, its conclusion. And while there are plentiful certainties — Joel Embiid, both of his hands surgically repaired in the interim, will return and promise to dominate — there is also the reality that neither Daryl Morey nor Doc Rivers is interested in a 2021-22 play back.