The same holds true for leaders. We've got to develop other tools or we are only truly effective in one type of circumstance. Even if that hammer (our strength) is the best hammer anyone has ever seen, it's not going to be very helpful when the situation calls for something a little more delicate. A leader that is committed to personal growth and leading change will invest the time and energy in developing other tools. This intentional personal investment can be difficult (and sometimes painful) but the end result will be worth the commitment.