I think the most important thing for Jakob is that he needs to be able to run his fastest 100m split in the last 100 of the race (and his 2nd fastest from 1300-1400, and his 3rd fastest from 1200-1300). Acting as the pacer and being maxed out on pace with 200m to go opens up the door for others to gather and summon the move to get past him.
It probably goes without saying this is unlikely to work if it’s legitimately “slow” to the bell, but I think it’s an under-confident mistake for him to think the finishing time must be 3:28 or faster. If I were his coach and/or older brother, I’d advise him to get out safely and just relax as much as possible for the first 600m, regardless of the pace. Take over decisively but with the deliberate intention of running every 100m faster than the last. 59.0-57.5-55.5-39.5 is only 3:31.5 but if his last 200 is approaching 26.0 and he’s got a stride or two on his pursuers, who are tangling with each other, that’s difficult to beat.