I'm pretty sure the reason "younger people" leave "dinosaur companies" is because they aren't happy. What causes that unhappiness is a wide spectrum. It could b

I'm pretty sure the reason "younger people" leave "dinosaur companies" is because they aren't happy. What causes that unhappiness is a wide spectrum. It could be poor team leads who let the young person's peers waste time while they carry the weight. It could be compensation at large companies is based on past performance rather than future potential growth. It could be because it sounds more impressive to a young person to say they worked at X new hotness tech company, etc. Your job as team lead, however, is pretty clear. You lead a team to create value for your organization. Professional development is an obvious tool in that toolbox. Finding ways to limit or restrict exploratory development in order to reduce risk is another.