not tense either
"I managed the set up of the new server system and was proud of the result," is also incorrect. Again, the first thought is "set up", speaking of the mechanical action itself, the second speaks of pride in the accomplishment, which is purely emotion oriented. "I managed the set up of the new server system, and I am proud of the result." is definitely correct. In the this case, tense is ignored between the thoughts, the mechanical action having been performed in the past and the pride carrying on into the future, as the conjunction "and" conjoins the two thoughts which, although dissimilar, are directly related. And, unlike the other examples, the thoughts on each side of the conjunction are stand-alone sentences, which is required for a conjunction to be used properly. Any sentence that employs a conjunction must be balanced.
