I think the main issue with retains in SPL is that what they actually were created with the intent to accomplishing and what they actually accomplish in the actual tour itself are completely different. The main philosophy behind retains in the first place is to establish team identities and and reward managers for making great finds and drafting good players for cheap early on, making it easier for franchises to form dynasties and have continual success. However, this isn't what occurs because of retain trading's existence, as retain trading goes against the philosophy of retains in the first place with them encouraging teams to have complete makeovers from year to year and making it nearly impossible for a team to really build a strong identity for more than a couple years. There also isn't enough retains to maintain a similar looking roster every year, as there's a whopping 11 players picked up every year that weren't retained from the previous SPL. Additionally, another reason why retains don't accomplish what they were initially intended to create in the first place is because the player and player pools are both highly volatile from year to year, with new faces cycling in and out of franchises constantly, making it difficult for teams to retain an identity when everything about the team changes every year.
This isn't to say that we should do away with retains, but that if we want to work to ensure that retains accomplish their original goal of molding these team identities and rewarding good managers, we need to make an effort to make teams hold these identities longer by coming up with solutions of some sort. I know that it's unlikely that retain trades will be done away with is unlikely in spite of what qualms I have with Dante's idea of increasing the number of maximum retains honestly isn't horrible because all it does is reward the better teams for drafting well the year before, and the incremental increases in player prices makes it so that it's not insurmountable to overcome these teams in spite of having a decent amount of retains. Even with retains increased to, say 5 players, teams still have to draft an additional 9 players that they didn't retain from last year's team, so realistically retains can be increased a good bit without making parity a genuine issue in SPL. No team in the history of SPL has ever won this tour twice in a row and the massive turnover in terms of rosters and which teams are the best makes it so that there's never any dynasties/great teams from year to year to create storylines going into new seasons. Storylines in the SPL tend to focus on individual players and their performances rather than the individual franchises for the most part unless there's an exceptionally well-performing underdog,. I find that to be an issue because with the skill level and roster of teams being so different year to year, it becomes impossible to build more than single-season rivalries and thus drum up the hype of the tour as a whole. Additional retains also encourage good/successful managers to come back because they get to work with a similar group of people as last year instead of a couple of their old guys + a bunch of dudes they haven't teamed with before/in a while. Obviously, it's hard to guarantee managers return on a yearly basis because of the nature of the tour and this game in general, so I think that this is the best we can do.
However, I understand that with the current tournament community climate regarding SPL retains, it is unlikely that retains get increased, as people seem to have this obsession with ensuring parity in the tour, even though a different wins every fucking year, but I definitely think that we shouldn't nerf retains because then team identity becomes even less coherent than it already is and at that point you might as well do away with retains altogether. Ideally, I would like to increase the capability of managers to keep the same team as last year, with the most obvious solution being just increase the number of retains, but I would also be content with SPL retention rules staying the same seeing as they worked just fine last season.
Please fix the sellback rules though because there was a lot of obvious issues with those last year that don't exactly need to be spelled out ._.