Pre-tip off technical foul and non-starter shoots the free throw

[rfp]

If there is a pre-game technical foul, such as an administrative T or for dunking during warm-ups, the shooting team has the option for a substitute, A-6, to shoot the foul shots. Does this mean, as in 3-2-2a, that A-6 has been allowed to become a starter and that he/she must start the game? Or can A-6 shoot the fouls shots and return to the bench, allowing the regular starters to start the game?