How different it was a year ago! Coming off the last Women's Ashes in Australia, Sciver had the world at her feet, having averaged 34 in that series, and been a critical part of England's success.
But since then, things have gone downhill fast, and in 12 international innings since, she has averaged just 11, with a highest score of 23; the situation reaching its apotheosis today in the 3rd ODI against New Zealand, when she was run out for a duck.
For an all-rounder, this might (just about) be acceptable; but Nat has hardly bowled outside of T20s in 2014/15; and a Batsman Who Can't Bat But Can Bowl Very Occasionally really isn't what England need in their flaky middle-order right now.
I don't think England will, or should, drop Nat for the remaining ODIs or T20s; but if she's to be a part of England's next Ashes triumph in 2015... Sciver needs to Deliver.