So, we "drafted" him originally. Is he worth a look in free agency and is there any way that he can fit on the roster.
Nah, I don't think so. Foye never learned how to play defense or how to effect a game outside of scoring. That makes him reliant on touches and shot attempts to help his team ... which is a long way from what you ideally want out of a role player.
You want that guy to be comfortable with a small dose of shots, to be able to play off of others offensively, to be able to effect games outside of scoring.
There is still a bit of potential to Foye. He is a poor-to-very poor backup guard at this stage in his career but he could develop into a very good backup combo guard if he falls into the right situation. Therefore, I would be open to taking a shot on him and that possible development if the price was right ... but Foye is likely to command $3+ million and the Celtics have too many other bigger problems, with a higher likelihood of being addressed, that they should focus on first.
So still a no, Foye has priced himself out of the C's market ... but if things were to get really bad for him and he was available for the minimum, I'd be happy taking a shot on him.