A tester walks into a bar and orders a beer. Then orders 0 beers. Then orders -1 beers. Then orders pi beers. Then orders 2.2 billion beers. Then orders 1 cerveza. Then orders an aircraft carrier. Then changes the programmer's beer order to 2 beers. Then cancels an order for a beer. Then flips the calendar back to 1980 and orders a beer. Then flips the calendar to 1925 and orders a beer. Then sets the clock to 23:59:45 and orders a beer....
Those bar jokes represent not only different skills, but different stereotypical personalities. The builder-programmer has to be cautious, methodical, and well structured, whereas the tester has to channel the spirit of the chaos monkey to find something that no one else ever expected.
I helped found Tesults (https://www.tesults.com) and one of the main reasons it exists is due to some of mine and others' experience working in automated testing. It makes automated testing highly visible across a team. When someone writes a test, everyone sees it, you also see how often the tests run, across various branches, platforms and build flavors. You then get all of the benefits of aggregated test results reporting. Once you have this running you cannot imagine going back to automated testing without having it because it feels like you are flying blind. It is undergoing rapid feature development as it is only a few months old but we have companies of various sizes using it and if it looks interesting to you feel free to contact me if you have any questions. We are adding screenshot and log file uploading soon. Some dev teams invest so much into their automation infrastructure including writing test hooks, writing test case strategies, adding and maintaining test scripts, setting up and configuring continuous integration systems, only to treat results reporting as an afterthought without realizing that the data being generated is valuable and they fail to make the most of their time and investment into the automation.
A good testing setup can be an alternative to redundant manual testing. This can really help speed up the creation process (for me, at least).