Choice of between possessive and adjective

0Hi,02br
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00How a person go about deciding which forms to use if that person seems to be confronted with several viable choices?02br
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001. In the realm of office management new procedures, techniques, and equipment to improve 01u00office efficiency02u00 are continually being developed. 02br
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00For this, several options seem to be available to him:02br
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00to improve the efficiency of the office -- long, perhaps02br
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00to improve his office's efficient running -- slightly different but overall the same, I think.02br
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002. Improvements in 01u00copy reproducing techniques02u00 are another example. 02br
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00an option available, as it seems to me:02br
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00in techniques of copy repoducing02br
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00Is long running adjectives OK as long as the adjectives don't go against their lexical meanings?0-