I've upvoted you and would like to add some things. Being a programmer is a whole job. You can't expect someone to be awesome at design and know how to use sour

I've upvoted you and would like to add some things. Being a programmer is a whole job. You can't expect someone to be awesome at design and know how to use source control (properly), bug/issue, javascript, browser incompatibilities, w3c validation, etc, etc. Other fields of work are the same, btw. Architects can use hammers but I'm pretty sure only a few could handle a pneumatic drill properly and with safety. The designers probably said they knew front-end coding because whatever they had to do previously was good enough for the past clients. The OP has higher standards, which now requires a professional to do it (shameless plug, I'm available for freelancing work).