The change in the designation of "family history consultants" to Temple and Family History Consultants is more than just a change in the name. The article on LDS.org entitled "Understand Your Calling" gives a concise explanation of how the callings have changed.
As a temple and family history consultant, your primary responsibility is to proactively help members have personalized, one-on-one experiences in finding their ancestors, performing temple ordinances on behalf of those ancestors, and teaching their families to do the same. No matter what your family history experience is, you can lovingly seek out those whose lives would be blessed by family history and pray for the Lord’s guidance as you help them. As you partner with your priesthood leaders, you will receive direction on how best to fulfill these responsibilities and magnify your calling.One of the key words here is "proactively." The word "proactive" is defined as (of a person, policy, or action) creating or controlling a situation by causing something to happen rather than responding to it after it has happened. If we are called as Temple and Family History Consultants, we shouldn't be waiting around for someone to ask us for help, we should be actively seeking to help everyone in our area of responsibility. As I have written many times before, family history is not a Sunday School Class. Family history activity should be going on constantly and consistently.
Every member of The Church of Jesus Christ of Latter-day Saints has the same responsibility to seek after our kindred dead. This is not a compartmentalized, Sunday only, duty. It is an activity that needs to be integrated into our daily/weekly activities. Many members, when approached about "doing their family history" assume that they are being asked to do "one more thing" added on to their current burden of daily activities. If this is your reaction, I suggest you do a time audit of your daily activities. See what it is that is taking so much of your time each day that you do not have time to even think or pray about family history.
In-depth training for family history is currently available online on FamilySearch.org, LDS.org, and The Family History Guide. There is currently no basis for an excuse that you don't know how to do family history. The resources are now readily available.