LB is a massive need -- not just 1 guy but we really need 2-3 -- but I think we're also unclear how the team values LB.
If they view the every down LBs to be Sean Lee and Jaylon Smith, then maybe LB isn't a RD1 position. They may view the position as fillable with guys from RD2 through RD4. We're here sweating over Rashaan Evans and Leighton Vander Esch and maybe the team thinks their scheme would be just fine with Christian Sam, Josey Jewell, Jason Cabinda, etc. Is a superstar necessary?
Or they may be thinking of moving Sean Lee back inside and grabbing Roquan Smith or another OLB.
Or they may have an agreement in principle with Bowman that's contingent on the day 1 selection. If they take a LB in RD1, then there's no deal. If they take another position, they sign Bowman during or shortly after the draft.
But as others have said, LG (or RT) is pretty close. WR, DT, S is survivable with current roster. LG/RT is unclear. LB is critical.