D-Rob is looking rough out there with only 6.8 rebounds. J.R. may also be overrated in your league at that point in his career (if you care about sim stats). He was good in the earlier stages of his career and even post playing with Robinson he was good, however, with Robinson, the man had an average rebounding for his half-season that year. My assumption, from not watching him as extensively, would be the Spurs used him to boxout more as Robinson freely moved for rebounds. Depending on your comfort with the balance in your rosters and game, and proceed with some caution here, but you might want to lower his stats a bit while on the Spurs (again if realism in your sim stats is something you care about) to match that. Also, you may want to look at Will Perdue's rebounding stats as well. He was a really good rebounder for the Spurs. To give context, when talking Rebounding Rate using 2K's ratings (I'm not having any 2K systems in play to have to balance around and also having the scope be only 1996): Rodman is the only 99 (which in '96 he and Jayson Williams would probably be the only 90+ rebounders in real-life), Robinson should probably be around a 76 rebounder (he was top 10 in the league, but this would give realistic gap saying how great Rodman really was in 1996). Will Perdue should be around a 79 and Reid should probably be in the 55 range (
Total Rebounding % in 1996: Rodman: 26.6, Williams: 23.8, Robinson 18.4, Perdue: 19.3, Reid: 10.7). Perdue was a notch above Robinson that year when looking at his ability while on the floor, he just didn't play a lot of minutes comparing the two. Again, ignore this suggestion if the sim stats don't bother you too much, also, if you don't want to make roster changes like that, ignore what I'm saying. I suspect you would have to change the entire roster if you wanted it to match perfectly to '96 as 1996 really went, and I also suspect in 2K14's system that is ridiculously hard to match as the rules were able to be changed and versatile sliders need to be taken in the count to make the numbers match the hypothetical math I just pulled and still be fun. Keep in mind, the ratings may have a bigger scope depending on the mod as well. If using all-time as a scope for example, in my hypothetical math, I'd make my scale lower for the 90s in ratings so that could be what was done in the roster and Robinson would probably have an 81 for instance in 1996 instead of the 76. Also, the balance of fun-factor has to be calculated for and embellished a little (no one wants to play an average rebounding Kevin Garnett, despite him not being a great rebounder yet at 19 unless they care about sim). The balance could easily get broken with the changes I'm suggesting here depending on the scope the roster is using and how the rest of the roster was built. So, to be blunt, despite my suggestion, I'd probably not want to make any major changes unless you have a great handle on balance and why things "tick" as they do.
Anyway, looking good otherwise! We'll see if the Spurs can pick up this downswing. I think if Robinson can get more Offensive Rebounds to give him close shots at the basket his PPG numbers should go up as well which would help the Spurs' win column. The Cavs were mean that year though in perimeter play. Depending on the schemes and rules you are playing with (2K14 has zones, I think you can remove them, but it would push players out instead of in with zones), the Spurs could counter that by pushing everything to Robinson for easier off-the-ball blocks, closer rebounding, and better rim protection. That could be an easier solution for that team.