Usually 5ball has atleast 4k salary, but its close.
As the skills are upon grade, in case where the grade was low, the combination of potential and skills may be lower than one with high grade and low potential.
I agree that the grading should be a little more precise than it is currently now.
I also think that there are not much players that their grade-potential combination worth much in the draft, especially on higher leagues drafts.
Hence I've once suggested that it will be a little bit adjusted to suite the league quality.