I'll help you out here.
Maymon was not brought in to watch Tatum get punked out from the sideline. Fields neither for that matter. Williams will start, Tobias will start. Hall will see significant minutes. That's 4 (minus Maymon). Combine those with Golden, Hopson, Goins. That's 7. Playing 10 guys in March doesn't make much sense so there's room for one maybe two more.
Now you have 3 bigs, 3 guards and one guy who can play wing and post in Tobias. I give Golden the nod simply because he is more likely to be a solid backup to Goins than McRae.
Now that you've figured out your strengths. How can we hide the weaknesses? Simple. The problem last year was keeping opposing guards from entering the lane. Goins is a capable defender. Hopson and Tatum can be. But both on the floor together is a weakness. Golden and McRae have potential, but do you really want Hopson and Tatum on the floor together and then bring in more uncertainty on defense with Golden and McRae?
And since opposing guards were entering the lane AND SCORING, obviously we need to beef up down low to contain this. So to beef up the post, should we move Tobias down to the 3 and start Maymon at the 4? (Which still fits the PF position Pearl likes). or start Tobias at the 4 and Tatum at the 3 and put more pressure on Tobias on defense? (We need that guy to score)
We know Scotty and Tobias will score enough to help us win most games. Does Tatum add enough on offense to the point where we need him on offense? No. The first 7 guys I mentioned earlier.. Hopson, Tobias, Goins, Golden, Williams, Fields, Hall. The two players we add to this rotation are Tatum and Maymon. The question is which one do we start given our needs?