It depends on what do you call small or medium-sized business. Besides the same question can be asked about "developers". How many mediocre / junior / just deve

It depends on what do you call small or medium-sized business. Besides the same question can be asked about "developers". How many mediocre / junior / just developers you need "in-sourced" ? More and more work can either be outsourced to services like AWS is building or cheaper IT professionals anywhere in the world. The only question here is when taking the lead outweighs the costs.