They were shite for 2/3 of the season, that's why they got stick, they couldn't trap or control a football, and Simms inpaticular didn't work hard enough. None of that is to do with "gelling" or adjusting to our style.
Confidence helps massively of course, and they both benefited from starting to score,
But let's not kid ourselves that we haven't seen some very poor performances from both players earlier in the season.
Something changed after the second international break, (maybe some personal one to one training?) and since then they have worked harder and both have improved dramatically, they're both having a purple patch in front of goal at the moment and long may it continue.