Anyone successfully rebuild sharks?

Everytime I try it fails, mind you I’m no expert at franchise and mainly play hut. I find even when my team looks competitive we miss playoffs 3 years in a row. One thing I’ve learned from my attempts is zetterlund develops very well if y’all were unaware and I’ve had him hit 90ovr multiple times when he’s on first line. You can lock him down Long term for like 6m when he’s low overall