Re: Andrew johns on Cameron Smith : Sun Jul 05, 2020 1:11 pm
True but those players are rare. There are a lot of players who won't deliver value on the final contract of their career because they can negotiate a good wage off their reputation but are in decline. The decline kicks in at different times with different players and isn't always just to do with their professionalism: some great pros like Mike Gregory, Iestyn Harris, were in decline in their late 20s. Injuries, miles on the clock from playing lots of games early, also has to be factored in.
The decline curve is part of the "moneyball" data analysis which started off in baseball. In a stats-rich sport like baseball where they have so much data over so many years they've been able to model peak and decline curves and found that most players fit into a few general curves: early peakers, late bloomers, rapid decliners, evergreen stars. The moneyballers started to work out which path players were on and that kind of analysis can be great if you get it right. I remember one concept that came up when I was reading about this was that at the end of players' careers many have the 'cliff edge' which is where they have a rapid fall off from their season before and realise that physically they are past it. You don't want to be stuck with a player with a couple of years left on a contract when he's hit the cliff edge. With us, we saw the signs in Morley's last season, but then when he went to Salford he just wasn't the same, we timed that perfectly. Souths timed getting rid of Asotasi perfectly because he hit the cliff edge in his first year with us and we were stuck with a big contract.
That kind of analysis is getting big in football now but I'm not sure how much it is used in RL yet. Sam Allardyce at Bolton used it and picked up a lot of guys (notably Gary Speed) who other clubs assumed were past it but were at or close to their peak well in to their 30s. Also Liverpool getting rid of Torres to Chelsea was driven by data metrics as they'd picked up something like "percentage of runs of 8 yards or more where a player reaches speed X" which they saw was an early indicator of a striker losing effectiveness and saw Torres had plummeted in his last half season when Dalglish was there, so they looked to offload him at maximum value before his decline became apparent. They blew the money on Andy Carroll though who was never fit after that, which shows the analytics won't always get it right...