To me, the definition of "breakout player" would include something about unexpected. If a young player had a good 2021 it's not unexpected for them to have a better 2022.
I'll go with Rengifo and Detmers.
"Confident" is the qualifier here.
If they stay healthy, they have a good chance of making the playoffs under the current format.
I'm not confident they stay healthy, so I went with >2/3.