Look at the current roster. There are only a few LBs over 240: Mekhi Brown, Ryan Anderson, Reuben Foster, and Joshua McMillon. That's a third of the scholarship/recruited LBs. There has been a noticeable difference in recruiting habits by the staff. That was my point. Yes, Williams and Evans weren't 3 down guys with the older players on the field. By chance, the older guys weigh more because they arrived weighing more. The philosophy has changed some.
Case in point the philosophy is changing - the weights of the players you listed have gone down over the last couple of years.
so i just learned to not pay attention to the weights on rolltide.com. Williams is up to 260 now according to his interview after the SEC championship game - coaches pushed him to gain the weight - put him right into the average of the other OLBs who have been real contributors. It's also not really much of a trend in weights going down. In fact, once Dickson got enough experience to play, they pushed hubbard over to SAM in favor of a heavier player, and even without that, we're talking about a total variation that's pretty small.
On the current roster, 9 of the 16lbs on the roster have never played a single snap and several of those still have their weights listed from when they walked on campus.
of the 7 that have played, the three that have played the most, and also all three being seniors, are over 240, with the range up to 260 with williams (adjusted based on the interview). then you've got the two JRs who have played a bit, but honestly probably not as much in the rotation as people had expected and that's SDH (listed 229) and Evans (listed 225). lastly, Miller (213) who barely made any special teams contribution this year and Holcombe (223) who got ST reps this year after redshirting to gain weight.
Of the 5 guys in the 2015 class, 3 of them are above 240 - Add bell into that with the greyshirt and it's 4 out of 6 above 240 when they got to campus. The two below 240: Anderson was/is a S/LB hybrid project and Thomas is a WILL.
Maybe Evans is heavier than listed since we know the weights are not always accurate, and if so that's probably good and I'm not sure what the ideal weight to set the edge is, but I know it's not a speed thing, it's a power and strength thing and our track record even against spread teams is guys in the 250 and up range so IF he's going to be a 3 down guy, in our scheme as an OLB, he needs to add weight and strength. The alternative is switching spots to WILL so he can use all that speed and not have to tangle directly on the LOS with an OT every play then still be able to switch down for the speed rush when the situation is right. Being able to do that would be very, very useful and help with a lot of scheme versatility and is probably why they are giving him looks at the other spots.