Roleset falter.01 Verbnet Class: NONE "misstep":

Roles:

Arg1:thing faltering

Examples:

purpose (-)
Western Union has had major losses in recent years as its telex business has faltered in the face of competition from facsimile machines and as other business ventures have gone awry.
Arg1:	its telex business
REL:	faltered
ArgM-CAU:	in the face of competition from facsimile machines




location (-)
Still, with competitors such as Eastman Kodak Co. faltering in copier sales, Xerox's sales increases ``were encouraging,'' says Eugene Glazer of Dean Witter Reynolds Inc.
Arg1:	competitors such as Eastman Kodak Co.
REL:	faltering
ArgM-LOC:	in copier sales

Note that you can easily restate the former example as "because of".