Got 8.4 on James as a value pick in an expert match. Not horrible, and might be interesting with a better matchup.
I think this is a fine score for a $5K RB.
I typically want all players to score at least 2 points for every $1000 in cost. That puts you @ 120 points, which is good enough for most 50/50s.
Right, but the point of the cheaper ones is to score enough points to average out to the 2pts per $1000
Spending 5k on Mike James means you get, say, 1800 (replacing Lacy) to spend on ___. If the more expensive players you select score 1.6 points more than the goal you've set, it was a good decision. If they don't, it goes to you picking non-optimally and not just Mike James' performance.
ETA: If James scored 0, you still have a shot with your extra cash to make up for the 10 points you expected to make with your $5K spent. I'm just saying, as far as goals and expectations, 8.4/10 is a good return for spending only $5K on the position. IMO, but I'm still learning.