Architect's responsibility

Lilian, an effective LEED project team has everyone pulling their weight toward sustainability and LEED project goals. Every team and every contract is different so I can't speak to your situation, and LEED itself does not dictate how teams should operate, but in practice, the type of behavior you describe, which can show up within any role on a team, is not responsible to the project goals, assuming those goals are well-established by the owner or other responsible authority.

Lilian, Your experience is more common that we'd like to admit at this point, but I'd like to support Tristan's last comment about the assumption that the project goals are established and support by the contracts. You may be seeing the result of a contractual relationship that divides the credits and doesn't incentivize an integrated approach. In some cases, the contractual relationships haven't quite caught up with sustainability. It's not always clear that the contracts need to be modified as much as the specificiations if the team is expected to REALLY collaborate. Don't shoot the messenger, as we say in the States, until you determine whether this position is intentional or not. If their response is based on the contract, see if you can illustrate the benefit of an alternate approach and broach the concept of collaboration to achieve a higher level of sustainability. Good luck!