They are neither quick nor easy. Workers with knowledge are in demand. Employers will pay more to get them and keep them. Foster a healthy business climate. Access to an educated work force, a high quality transportation and communications network, a minimum of red tape, all attract businesses.
More business means more demand for workers.
Wages go up. Make affordable housing available. Money not spent on housing can be used for other things. In such a climate, it is reasonable to mandate a certain percentage of a given development be set aside for work-force housing. This will drive up the cost of the high-end homes, but recent history indicates the market will bear the shift.