Definite value for a 17th round pick. This is a guy that many owners will draft late in the first round.
I would definitely keep him around until his glove fully develops. I have seen 18 year old drafted fielding type guys like this develop the glove rating into their fifth year. Take a look at any 18 year old drafted fielding guys on your team right now and look at how their glove rating developed. You will see that those guys usually have 5-7 glove rating increases during their fourth year pro. If your guy ends the current season at 63 glove (reasonable expectation), he could end next season with a glove of 68-70. Then after that, he will gain a point or two a season for the next three seasons. So, I think he ultimately has a 73 glove by the time he is age 25. Also, since he is only 20, he will still get a few more points of range for a range of somewhere between 92-94. So, i think 2b is a good slot for him on most teams.
The switch hitting and speed are what ups his trade value. Also, that baserunning tends to develop similar to glove in that an 18 year old drafted player will see 5-7 point gains even in his fourth year pro. So, if you want to trade him, find the teams that are focusing on speed (usually the team that was a top five base stealer the previous season), and sell hard.