It sounds like you're looking for ticket monkeys; the article is about how to become more than that for the people that aspire to that.
The fact that you call your new hires "newbies" and don't expect them to make suggestions for a year is a huge red flag for me. Either you didn't understand that the article is targeted towards experienced professionals switching jobs (first sentence), or you think that a professional will take an entire year to understand your org and be more productive than work on tickets.
Most devs that I know worth their salt are comfortable switching jobs every 2 years or so (whether they choose to or not). The contrast between that and not even being expected to think for a year is massive.