Absolutely!
And thats one of the best ways to make money in current state of BB. In Lithuanian discord we encourage newer players to not shy away from 7-8 potential players, especially once you learn training patterns and recognise good skill distributions.
Additionaly, you can train these players for their respectable U21 teams! In smaller countries anything above potential 7 is enough, in bigger we aim 8+, as some players will reach their potential cap at the age of 21 (especially bigs).
Remember that potential only matters when you train long term and neither training for profit or U21 is that.