Complex sentence: Mahindra team principal Dilbagh Gill agreed that Buemi's presence would have delayed Vergne, or caused him to use more additional electrical energy, and felt Rosenqvist would have been able to fend off a challenge from Vergne.
Split into simpler sentences: Mahindra team principal Dilbagh Gill agreed that Buemi's presence would have delayed Vergne, or caused him to use more additional electrical energy. He said he felt Rosenqvist would have been able to fend off a challenge from Vergne.