I think NL1 is a very competitive league now and we could probably see most teams losing to some we wouldn't have thought possible. Having said that it will depend on the size and quality of each teams squad as to who has the most success. Having a good 17 - 20 players is great but it is the replacements for injuries that need to be of a good quality to cover when times get hard, as they undoubtedly do in the modern game. I think the days are gone when a team could go a full season using only about 20 players, so the team with the best 21st best down to the say 34th best will be the team that gains the most success.
Do Haven fit that bill? Personally, I think anything above 5th should be looked on as a bonus and as P & R is out of the equation now the race becomes more of a distant race rather than a sprint.