I seriously think you should have a one on one with Des. Totally agree with you.
In my junior years, I had a coach who would always stick to up and in defence. The luxury being both wingers were State runners in the 100 metres. Whenever one or both were injured we leaked points like a sieve. Defensive structure has surely got to be able to switch to slide defence, especially in our red zone.
Thanks for the vote of confidence, but I think I'll stick to being an armchair critic lol.
Up and in, or Umbrella as it was called back in the 80s, can actually work if done right. But as you said, it certainly helps if your wingers have speed. But the main thing it needs to work is for everyone to keep formation. Our major problem has been that on both sides of the field we get players rushing up out of the line, and to make matters worse, they often miss their target or the ball is gone by the time they get there. On the left, Jorge or Parker often do that, on the right its been mostly, and he should certainly of all people know better, DCE who does it. All rushing up does is put gaps in the line that our slow players can't cover in time to shut things down. It either creates a gap for the opposition to send someone back inside, or if those outside move in to cover the gap then it creates an overlap or a 2-3 on 1. Neither is good and we get a lot of tries scored against us that way.
Sliding defence isn't perfect either and it often see's the defensive line backing away, even when they are defending their own line. But the difference is that players stay on their man (provided they trust their team mates to do their job) and its harder to get through or around the line.
But despite whatever defensive structure that is used, the one thing you need is a fullback with pace to cover, positional awareness, a voice, knowhow and confidence to direct the line ... and of course they have to be a good defender. We had that for the first 6 weeks of the year, then Tom got injured and neither Garrick, Elliot or Funa were able to do the job anywhere near as good.
Interesting fact. In the 7 games Tom played this year, the average score was 17-16 (technically 17-16.8 which is still a win). In the 13 games we played without him at fullback, the average score was 19-30. We scored two more points per game as the season progressed, but we leaked an extra 13-14 per game. And I would wager that most of those extra points leaked were scored out wide.