I think in both cases the starters are the better players. But don't focus training on them (see what the draft will bring to you).
One more thing I want to suggest. You built a team of many young players. This is not a bad thing of course, but it doesn't make much sense in a game like BB. Young players are usually more expensive on the transfer list because they are trainable. But, if you are not going to train them, young age is kind of useless. A new team like yours grow very fast and you will see, that in a few seasons your best players now will become less and less important to your team (unless you train them of course), because you will buy better players every season. Buy older players with higher experience for the position you don't train. Imo experience give quite a big influence on a player's performance.