Acontractor was feeling defeated because the job he was working on was so far behind schedule. as he looked at the job site, he saw one worker moving bricks by carrying two at a time from where they were unloaded to where they were needed. he saw another climbing up a ladder with a few shingles, climbing back down to get more, and then repeating the process. which management process could be used to determine how the workers could perform their tasks more efficiently?