Which is why I'm avoiding the pain and going with Whitfield, Dusty and 6 rookies.
I think a balance is key, you'll need to take a punt on at least some value selections otherwise, you may struggle to fully upgrade your side if you've not been able to catch that "breakout" selection and had to overspend later on or the rookies don't quite make enough cash and you're forced to upgrade into a compromise selection anyway.