I think the changes coming up in training will have a much bigger impact on the relative value of different positions than the addition of more bot team players to the TL. Cross-training will probably change a lot the current training strategies, especially for small forwards, but this may also ripple to the guards' value. The main reason for the difference in the value of guards vs. centers is really about the number of skills needed for the different positions and how much time it takes to train them. This has been discussed at length in other threads, but in a nutshell, training a center is easy so valuable centers are more plentiful on the TL, while training a guard takes more time (just training up OD alone is a task!) and so valuable guards are less available on the TL.
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