Greene scored more points total, but you have to compare Greene to whatever RB2 you will have instead and compare, say, Tuck, to whatever DL1 you will have instead.
If gap between Tuck and your next likely DL is bigger than Greene and likely range of RB2, then it makes sense to keep Tuck.
Same for any other IDP.
If difference between Greene and another RB2 that you likely end up with is greater than the DL1, in this example, then it makes sense to keep Greene.
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