[jaspal747]

As a tech lead, you bother about building the features that the business has identified - and building it in the best way possible, thinking long term about the product. While as a business decision maker, you focus on what your users want - else you will be out of business fairly quickly.

[nevertoolate]

Tech lead is responsible for maintainable code, somewhat anticipating changes in business, so tech lead is a Jedi :)

[rorykoehler]

They go hand in hand unless you plan to quit within a year and leave someone else to clean it up.