Apologies in advance for the long post!
I'm new in a project/communications consulting position, and as part of my role I'm unofficially taking over management of an ongoing web development project.
The problem is that there are another team of consultants who have been working on this project for some time already, but I'm really unimpressed with the work they've done - both now and in their past projects. Their designs and technologies are very outdated. It seems every project they've done in the past 20 years looks and functions the exact same, and nowhere near meet my expectations. When I have asked them why they handle things certain ways, they bring up their (many) years of experience and brush me off.
These conversations have mostly been by email, and my new boss is always on copy but doesn't reply. I'm really not sure the best way to proceed:
On one hand, I think the boss already had doubts about their work before I came in, and may be happy to see me challenging them.
On the other hand, I'm worried that if he sees me as being difficult or not working well with the other consultants it will put my job at risk before proving myself (I'm on month to month contracts for now).
It's also very difficult to tell an older life-long tech / design consultant that their work is not good enough - and I don't have a clue how to approach this without making them dislike working with me, and potentially try to push me out.
Thanks in advance for any ideas or advice on how to best approach this and protect both my job and the project!