Coach: Chris Chester (since March 2016).
Captain: Jacob Miller.
2018 finish: 7th.
2018 leading scorers: tries – Tom Johnstone 24; goals – Ryan Hampshire 61; points – Ryan Hampshire 143.
In: Danny Brough (Huddersfield), George King (Warrington), Craig Kopczak (Salford), Ben Reynolds (Leigh).
Out: Liam Finn (Newcastle Thunder), Scott Grix (Huddersfield).
Odds to finish top: 25-1.
Key man: Danny Brough may have turned 36 but that did not stop Trinity offering him a two-year deal to prize the goalkicking half-back away from Huddersfield and it could prove to be a smart piece of business.
Prospects: Chris Chester has guided his team to fifth-place finishes after 30 rounds in each of the last two years and they will be ready to make it three in a row if one of the anticipated big five falter.
Coach: Steve Price (since October 2017).
Dual captains: Chris Hill and Jack Hughes.
2018 finish: 4th.
2018 leading scorers: tries – Tom Lineham 18; goals – Tyrone Roberts 32; points – Stefan Ratchford 114.
In: Blake Austin (Canberra), Jason Clark (South Sydney), Matt Davis (London Broncos), Lama Tasi (Salford), Danny Walker (Widnes), Jake Mamo (Huddersfield).
Out: George King (Wakefield), Dom Crosby (Leeds), Tyrone Roberts (Gold Coast), Ben Pomeroy (Catalans), Mitch Brown (released), Bodene Thompson (Toronto), Morgan Smith (London Broncos).