i generally think one must approach low WE players with the 'they must start their first 3 seasons' view. however, this guy is so low, im not thinking he's ever going to improve materially. he's looking at something like a 17 to end jr year if you start him for 3 seasons straight - that is still going to lead to really crappy improvement.
the combo of we + sta makes this a hard pass for me in any scheme in d1. however, now that you have him, i would just look at him as a career bench player. this is not a guy i would waste 3 seasons of starts on.
i totally get dogg's point, although i've certainly had my 5 most experienced guys (including 5 seniors) start on press teams, it really depends who your backups are if you need to mix up your better and lesser players. i would say the default case is to run your best 5 on the starting lineup and then mix up as required for offense, which is common, but i would say far from certainly necessary (50/50 ballpark, varying by circumstance).
what i will say in the same vein though is, player development remains an essential part of this game. not as essential as 1.0 before potential, but still VERY important. as you get better (not sure where you are in the spectrum, if its easy for you to hold an a+ most seasons in your longer term d2/d3 programs, you are probably there - if not, then probably not) - you really need to focus on player development holistically. this necessarily means practice planning + EE planning + regular season start/PT modifications to get better guys more PT. if you are playing your regular season to win as many games as possible - that's fine - but know that such an approach breaks down as you start competing in the upper echelons. in 2.0 when starts were way less important and less common, i started really young teams every season anyway. its just too important.
the reason is this - starting your seniors isn't making them better - starting your fr/so yields cumulative, compounding dividends - just like investing for retirement when you are young. that +5 WE as a fr pays dividends for 3 off seasons and 3 seasons (until you max, anyway). if you add 5 more as soph, you can see how this really adds up. how prepared your end-of-season sophs are for the NT is one of the major differentiators between the teams who win the championships and the teams who don't.