When initial repairs are inadequate, therefore, it is not because the mechanics lack competence; rather, there is clearly a level of focused concentration that complex repairs require that is elicited more reliably by rework jobs than by first-time jobs.
there is clearly--- [a level of focused concentration (that complex repairs require) that is elicited more reliably by rework jobs than by first-time jobs.
there is clearly--- [a level of focused concentration (that complex repairs require) that is elicited more reliably by rework jobs than by first-time jobs.