Brifters and/or aero brake levers don't have brake cable barrel adjusters as a rule. Right? Is this not a rule anymore?
Anyway, the usual place to put an adjuster is at the cable stop. You can buy barrel adjusters to fit in the stops if you have clearance for them. Something like this:
http://www.biketoolsetc.com/index.cg...em_id=JW-NZ233
It's strange that there wouldn't at least be on in the back, assuming there's a brazed on cable stop.
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fun facts:
Psychopaths have trouble understanding abstract concepts.
"Incompetent individuals, compared with their more competent peers, will dramatically overestimate their ability and performance relative to objective criteria."